Assuming that isn't a typo, how on earth is the paper base still white (i.e. no fogging and no yellowing) ?! Was it stored in a salt mine in an inert gas ? Am I the only person amazed by the ability to get exquisite prints from 92 year old photographic paper ?
Old papers last -- esp AZO...the slower the better! Might be due the heavy metals?
I have drawn directly on the glass of the contact printing frame with a sharpie to do a little dodging. Usually part way thru the exposure.
At least with LF landscape, a bad day of photography can still be a good day of exercise.