In his book titled "Camp and Trail" published in 1907, Stewart Edward White advises his reader to use only "OO canvas" for their canvas kayaks (not sure if they are letters or digits).
Does anybody know what kind of canvas it might have been back then? Does "OO" stands for a type/kind of canvas, or it was some manufacturer's brand name?
link to the publication below;
" The best sort are constructed of OO canvas." - https://www.google.com/books/edition...v=1&bsq=canvas - page 162