I have several imperforate pairs of the 1906 pictorials but I'm trying to figure out exactly what they are
Scott lists 7 of these (101b-113a), presumably as imperforate stamps
These are also shown in Saleski who adds several more to the Scott list
Saleski doesn't explicitly describe them as pairs (only as imperforate) but his illustrations are all of pairs.
But Saleski also describes imperforate proofs (P119-P131) and Manfred Beier's website shows a number of single "paper proofs" which are imperforate
So how do I figure out what mine are? stamps or proofs?
Some have gum and some don't if that helps
I also have what I take to be two die proofs in imperforate pairs:
1c in blue (as on Manfred's site as 101 die proof blue)
20c in a light red (maybe Manfred's 106 die proof 4)
However I don't see these listed in Saleski
Any help would be appreciated