In fact, when Photographer's Formulary began selling gum kits (and/or
materials, I forget which) they used that very line..."gum can't do fine
detail." I quoted it-- not in P-F, that is, Post-Factory, but on the list,
referring to them as PF (Photographer's Formulary) but Peter Fredrick thought
"PF" meant him -- as he also had a book about alt-processes. A tsimmis did
thereby ensue, which was eventually resolved, tho not before PF resigned from
the list and then (if memory serves) was persuaded to return.
In the jesting that followed the conflation of PFs, one fellow assured us
it stood for Pink Floyd.