I found the name 'Platinotype' in the catalogue of one paper wholesaler.
The description was that the paper was rougher version of their standard
Platinotype paper. When I tried to order some of the standard version it
appeared that the item had been in the catalogue but removed from stock in
1910.
Dick's point about KOL saying that Cranes was the paper to use and so it
had to be used and no other would do underlines my point about keeping it
simple. Try it out for yourself . Dick Arentz uses Cranes because it suits
him. Fine. I use Fabriano Artistico or Saunders Waterford for much the
same reason.
When you start out try what the maestro says but then branch out. The water
may be wrong in your area or there may be cheaper and better sources
locally. Try them out.
There was one person on the list, who came from an ancient and great city
and who was just starting in alternative photography who assumed that he
would not be able to get products in Italy because all the books came from
the US or UK and mentioned sources only in those countries, We were able
to point him to Italian sources such as a certain paper mill outside Milan
! I came across a case where the maestro had said that he bought a
product from a certain source so one of that maestro's acolytes insisted
on buying that product from that same supplier when it was available from
every pharmacy along the ten miles from home to the supplier.
Terry King