>Mike
No, make that 400. No photographers read AP.
I saw some of these prints a few years back and they looked exactly like
gums to me.
Incidentally many gums are now made using PVA (which is a 'modern
photo-polymer' - is this a co-incidence?). A suitable grade comes in pots
labelled Gloy at about two dollars for 142ml!
Peter Marshall
petermarshall@cix.compulink.co.uk