[quote=“AWDrifter,post:5,topic:30546"”]
Back in the day we used to make blue prints with ammonia.(No old jokes)
Maybe Seneca Blue Print might sell it.
BE CAREFUL - IT WILL BURN YOUR EYES AND LUNGS BADLY.
[/quote]
Holy shit
Years back I used to have to make blue prints in this little room
Just me and the blueprint macine, in a 10’x10’ non ventilated room
Take that OSHA…