ACP = Advanced coated paper

PVAD = Polyvinyl alcohol acetate dextrin gum

!
!

34p Slate blue

!
hd36_38
ACP/PVAD (Harrison/photo)
Cylinder 1 [10.1.90]

HD36 - 34p Slate blue, ACP/PVAD, screened value (Cyl 1) (Harrison/photo) Deegam A340.1.1 - S.G. W794 - Concise 1473 - Stoneham PB17

!

HD37 - 34p Slate blue, ACP/PVAD, non screened value (Cyl 1) (Harrison/photo) Deegam A340.1.1b

!