U of S | Mailing List Archive | alt-photo-process-l | Gum & the commercial ?

Gum & the commercial ?

Has gum printing ever been commercial ?

(carbon, pt/pd & others was at some or several points part of the commercial
market, but don't think I have seen any references like that for gum .. Yes
I know, commercial can be interpreted a couple of ways, but..)

Feels like a pretty significant question 3:50 in the morning :-)