Conservation Treatment of Watercolour Architectural Drawings

Set of 7 watercolour architectural drawings, tightly rolled before conservation treatment.

Architectural drawings are not only archival documents, but can also be beautiful artworks in their own right.

Book and Paper Conservation Services recently treated a set of seven watercolour architectural drawings depicting details of the Cathedral Basilica of Christ the King in Hamilton, Ontario. The treatment involved humidifying the tightly rolled drawings, surface cleaning to remove dirt and grime, removal of tape and adhesive residue from the back of the works, and finally framing in acid-free materials to preserve and safely display these gorgeous watercolours.

The watercolours were exquisite works of art, and we were thrilled to be part of the project! Read more about the process and see the results on the Diocese of Hamilton website.

Conservation Treatment:  Watercolours from the Cathedral Collection

If you have architectural drawings or other archival materials you or your organization are interested in having restored, contact us to discuss conservation options. And check out our treatment portfolio to see other treatment projects we've undertaken on documents and records!

Conservation Treatment of a Bird's Eye View of London, 1872 Lithograph Print

Bird's Eye View of London, Ontario, Canada, 1872, before conservation treatment. 

Book and Paper Conservation Services recently had the privilege of restoring this wonderful early Bird's Eye View map of London, Ontario, Canada. The detailed colour lithograph print, dated 1872, resides in the collection of Western University Archives, which holds extensive records of London's history.  

History

The map is an illustrated vision of the city from a bird's eye perspective, a common theme in the late 19th century. It was drawn by the artist E. S. Glover, and produced by Strobridge Lithographing Company, in Cincinnati, OH.  It would have been distributed in London and purchased by prominent local citizens at the time for display in homes and businesses.

Detail of the 1872 map showing streets of London, Ontario, and the Military Garrison in what is now Victoria Park.

The map illustrates significant buildings in the city as of 1872, such as the Covent Garden Market, Labatt Brewery, and the military garrison, situated on land which is now Victoria Park. The locations are numbered in a key in the bottom margin. The map is extremely interesting as a historic document because it depicts a number of streets and locations which no longer exist or have since been renamed. 

When it arrived at our studio, the map suffered from a variety of condition issues. After examination and consultation with University Archivist Robin Keirstead at Western's Archives and Research Collections Centre, an extensive treatment protocol was determined. During the course of conservation treatment, the print underwent almost every process in a paper conservator's repertoire; it was an extremely satisfying project for our studio. 

Condition

The map was produced by a lithographic printing process on machine-made wood pulp paper, a typical paper but prone to discolouration over time. Sometime in its life, it had been mounted to a black pulp board backer, a very acidic material which had further contributed to the overall yellowing and brittleness of the paper. It also exhibited pronounced discolouration in vertical bands across the image, as well as extensive tears and breaks in the paper and minor losses around the perimeter.

Tears and losses along the border of the print.

Creases and breaks distorting the surface.

In short, it was in urgent need of conservation treatment to keep it from deteriorating further, and to restore its original detail and vibrancy.

Conservation included surface cleaning to remove dirt and grime. 

conservation treatment

The conservation treatment to address these damages included several stages. First, the print was surface cleaned to remove loose dirt and grime, and then the acidic backing was painstakingly removed with a scalpel and metal spatula, working from the verso to avoid any accidental damage to the print. 

Next, the print was washed and light bleached to brighten the paper tone. The yellow discolouration products were removed from the paper in this process, returning the image closer to its original colouring and removing the distracting bands of stain from the print. It was also deacidified to halt further deterioration of the cellulose.  

The Bird's Eye View of London is washed and deacidified to remove discolouration.

Once washed, the lithograph was lined onto a new, stable backing of Japanese paper, to provide support and repair the breaks and losses. This backing will not cause discolouration the way the old board did, and will help the print remain stable while also being slightly flexible.

Wash water becomes progressively less yellow as the print is cleaned. Behind, the washed and lined lithograph is visible brighter. 

The Bird's Eye View of London, after washing and lining on a stable Japanese paper backing. 

The final step in the conservation treatment was to inpaint losses to the printed image where cracks and breaks had disturbed the surface. Using watercolours and a delicate brush, the image was restored.

Inpainting to restore losses in the printed surface.

The restoration of this beautiful historic artifact was extremely successful, and the satisfying results can be seen below.  The paper tone has been brightened, allowing the image to be viewed without distraction; the damages have been repaired and print is supported and stabilized with a new backing. It has been returned to the Archives where it will be stored and preserved in ideal conditions, and can be accessed by future researchers and interested Londoners for years to come. 

Bird's Eye View of London, Ontario, Canada, 1872, before and after conservation treatment. 

Art conservation is an extremely satisfying occupation, and Book and Paper Conservation Services was very pleased to have contributed to the preservation of this important artifact. If you have historic or archival materials or antique prints that you are interested in having restored, don't hesitate to get in touch with our studio. There is no charge for a consultation, and we are always happy to discuss conservation options with you. 

Conservation Treatment of a Canadian WWI Battalion Panorama Photograph

Lambton 149 Battalion, panorama photograph, before and after conservation treatment.

As we work our way through the centennial years of the First World War, archives and museums across the country are showcasing items from their collections that relate to Canada’s role in the conflict. This is a wonderful opportunity to show respect for our past and educate younger generations about the impact of war; as these collections are being dusted off for exhibition, it is also the perfect opportunity to provide artifacts with much-needed conservation attention.

A WWI battalion panorama photograph recently came to Book and Paper Conservation Services for treatment from the Lambton Heritage Museum in Grand Bend, Ontario. Like many oversize and awkwardly shaped items, the panorama photograph had been stored rolled for much of its life. Age and exposure had caused the paper to become brittle, and the photograph was inclined to stay in its rolled configuration. Any attempt to unroll it caused stress to the materials, and several breaks had already occurred in the first several inches of the panorama when the brittle paper had been forced open.

Breaks in the brittle photograph caused by rolling.

This meant that the image could not be accessed at all; although cataloguing records noted that it was an image of the Lambton 149th Battalion taken in 1916 at Camp Borden, Ontario, the details of the soldiers and their surroundings could not be studied. 

According to Andrew Meyer, Corporate Cultural Officer of Lambton County Museums, the Lambton 149th battalion panorama photograph was donated to Lambton Heritage Museum by a community member, and it is the Museum’s only copy of the photograph. The photograph is important to Lambton County’s history, and conservation treatment was necessary for it to be accessed and appreciated by a wider audience.

After the panorama was brought to the Book and Paper Conservation Services studio, it was carefully examined and a treatment proposal was submitted to the museum. The photograph needed to be humidified to allow unrolling, and the breaks to be repaired. With the museum’s approval, treatment began at the studio.

Humidification allowed the panorama to be gently unrolled without causing further damage.

Humidification in several stages allowed the panorama to be gently unrolled without causing further damage to the photograph. After flattening between blotters for several days, it was returned to an even, planar state with no inclination to roll back up.

Surface cleaning removes a significant amount of grime, brightening the image.

Once the image could be fully accessed, the photograph was gently surface cleaned to remove loose dirt and grime. It may not have appeared grimy, but many years of dust and dirt had accumulated on the surface and cleaning yielded quite an improvement. The soiling was present over the entire surface, but was concentrated at the side of the panorama exposed at the open end of the roll. 

Ready to begin tear repairs on the verso of the photograph.

Next, repairs began on the breaks in the substrate. Japanese tissue and wheat starch paste, stable and reversible materials favoured by paper conservators for repairs, were used to mend the breaks and reattach the loose fragments. 

Consolidating the surface of the emulsion.

After each tear was repaired, the photograph's emulsion was consolidated to strengthen the area and restore continuity to the surface. Small losses were inpainted with watercolours and coated to restore the surface gloss.

One final humidification and flattening helped to ease the distortion caused by the tear repairs, and then treatment was complete. The process was very successful, achieving the goals of restoring access to the image and repairing the damage it had suffered over the years. 

The Lambton 149 Battalion Panorama, after conservation treatment.

The year 2017 marks the centennial of the Lambton 149th Battalion’s deployment from Halifax Harbour, and the Lambton Heritage Museum has planned several initiatives to celebrate this anniversary. The photograph is included in an exhibition currently on at the Judith and Norman Alix Art Gallery (JNAAG), entitled Lambton at War. The exhibition, focusing on Lambton county’s contribution to the war and the impact of the conflict at home, accompanies a traveling exhibition from the National War Museum, Witness: Fields of Battle Through Canadian Eyes, and runs until January 7, 2018.

Book and Paper Conservation Services is very pleased to have been part of this project, and we encourage you to check out the exhibition at JNAAG and the Lambton Heritage Museum if you are in the area! 

If you have historic or archival items that you are interested in having conserved, get in touch with us today to learn about our services. Or, check out our gallery section to see more conservation treatments of archival materials like documents and photographs.