sq46
ACP = Advanced coated paper PVA = Polyvinyl alcohol acetate gum
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SQ46 - Scotland 39p Amethyst, ACP/PVA, perforation 14¾ (Questa/litho) - Deegam S390.1.1 - S.G specialised XSL73 - Stoneham SC93 - Concise S80

Perforation 14¾ from cylinders Q1Q1 to Q4Q4 [3.12.91]

SQ47 - Scotland 39p Amethyst, ACP/PVA, perforation 13¾ error (Questa/litho) - Deegam S390.1.2 - S.G specialised XSL74 - Stoneham SC93a - Concise S80a

Perforation 13¾ from cylinders Q1Q1 - Q2Q2 [12.4.92]