Wow! Antique-shop.com forums are in the big #1 spot on Google for the search term "antique shop forum", for 4 years running!Thanks to YOU.
Yes, even now days most every mechanic has 1 to 4+- different sheets or pieces of gasket paper/material stashed around somewhere in their shop or garage.Especially lawn mower and small engine mechanics.A "shadetree" mechanic would use the bolt itself and a soft piece of wood to "cut" the bolt holes in the gasket paper.