While you pursue your investigation, here's something to start you out…
http://books.google.com/books?id=_Nco-r78TNoC&pg=PA358&lpg=PA358&dq=cellulose+nitrate+upholstery&source=bl&ots=1TQYpZNlvB&sig=Lk-qZbQgtdlnhv80GVKWzF4nwbc&hl=en&sa=X&ei=K5weUeS-FOuy0AGy5IAQ&ved=0CE8Q6AEwBg#v=onepage&q=cellulose%20nitrate%20upholstery&f=false 

Best regards,

Jane Hammond

http://books.google.com/books?id=_Nco-r78TNoC&pg=PA358&lpg=PA358&dq=cellulose+nitrate+upholstery&source=bl&ots=1TQYpZNlvB&sig=Lk-qZbQgtdlnhv80GVKWzF4nwbc&hl=en&sa=X&ei=K5weUeS-FOuy0AGy5IAQ&ved=0CE8Q6AEwBg#v=onepage&q=cellulose%20nitrate%20upholstery&f=falseOn Feb 15, 2013, at 3:34 PM, Ann Frisina <[log in to unmask]> wrote:

Peggy I have seen this fabric  on many items. I do not know what the coating is.  However, I do believe the coating was applied to simulate leather rather than waterproof. Let us know what you find.

Best
Ann Frisina

On Fri, Feb 15, 2013 at 12:04 PM, Peggy Derrick <[log in to unmask]> wrote:
The La Crosse County Historical Society would like to reupholster the seat on its 1922 American La France fire truck and I am trying to determine what the original fabric was, and what is my best option for a correct replacement. At first I thought it was upholstered in black leather, but upon examination I realized I was looking at a heavy woven cotton with a surface treatment to make it black and waterproof. The fabric itself is not in terrible shape, but the sewing thread is rotting. Maybe we should just stitch it back together? I'm curious to know what the surface treatment is: rubber? It's not crumbling or stiff like old rubber. Paint? Ditto. Vinyl? Isn't 1922 too early for vinyl?
Are there any simple tests I could subject a tiny bit to, to analyze it? And while I'm asking all these questions, does anyone have a recommendation on what to recover it with?
Thank you all so much!

Peggy Derrick, Curator

La Crosse County Historical Society

P.O. 1272

La Crosse WI 54602

608-782-1980





--
Ann Frisina
Textile Conservator
Minnesota Historical Society
345 Kellogg Blvd. W.
St. Paul, MN 55413
651 259-3385

http://www.mnhs.org/preserve/conservation/index.html