PCP = Phosphor coated paper PVA = Polyvinyl alcohol acetate gum
ACP = Advanced coated paper PVAD = Polyvinyl alcohol acetate dextrin gum
!

Scotland symbol types

Type 1 symbol - The tongue is thinner and the bridge of the nose is continuous. Type 2 symbol - The tongue is thicker and the bridge of the nose is broken.
sw16

Deep blue

SW16 - Scotland 22p Deep blue, PCP/PVAD (Waddington/litho) - Deegam S220.1.1 - S.G specialised XSL39 - Stoneham SC67 - Concise S47

From cylinder 4A1B [8.4.81]
sw17

Yellow green

SW17 - Scotland 22p Yellow green, ACP/PVAD, perforation 13¾ X 14, type 1 symbol (Waddington/litho) - Deegam S220.2.1 - S.G specialised XSL40 - Stoneham SC73 - Concise S48

Type 1 from cylinder 1A1B [23.10.84]

SW18 - Scotland 22p Yellow green, ACP/PVAD, perforation 13¾ X 14, type 2 symbol (Waddington/litho) - Deegam S220.2.2 - S.G specialised XSL41 - Stoneham SC73a - Concise S48Ea

Type 2 from cylinders 2A2B - 3A2B [1985]

SQ26 - Scotland 22p Yellow green, ACP/PVAD, perforation 14¾ X 14 (Questa/litho) - Deegam S220.3.1 - S.G specialised XSL42 - Stoneham SC97 - Concise S65

From cylinders Q1Q1, Q2Q2 [27.1.87]
sq27_28

22p Flame

SQ27 - Scotland 22p Flame, ACP/PVAD (Questa/litho) - Deegam S220.4.1 - S.G specialised XSL43 - Stoneham SC98 - Concise S66

From cylinders Q1Q1 to Q6Q6 [4.12.90]

SQ28 - Scotland 22p Flame, ACP/PVA (Questa/litho) - Deegam S220.5.1 - S.G specialised XSL44 - Stoneham SC86

From cylinders Q7Q7 to Q10Q10 [14.5.91]