Paul,
have you ever tried platinum toning on Albumen papers. I use the formula
from J.M. Eder which works well on Centennial POP. Itīs a very simple
recepture and you have to use it before fixing.
Eder Platinum Toner:
600ml dist. water
1g Potassiumtetrachloroplatinat
15g Phosphoric acid (conc.)
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An interesting alternative is the combinated gold/platinum toning. At first
the prints are slightly gold-toned and in the second step full toned in
this phosphoric platinum toner.
Good luck
Harry
Harald Leban
hlebanphot@compuserve.com
Austria