Cobalt blue

Polyvinyl alcohol acetate dextrin gum
!
ac35_36_37_39_41_42

Advanced coated paper

AC37 - 4p cobalt blue, ACP (Low OBA)/PVAD, upright print (Cyl 15) (Harrison/photo) - Deegam 40.15.1

Low OBA paper, upright print from cylinder 15 [26.7.88]

AC36 - 4p cobalt blue, ACP/PVAD (Translucent), upright print (Cyl 15) (Harrison/photo) - Deegam 40.15.1a

Translucent paper/gum, upright print from cylinder 15 [26.7.88]

AC38 - 4p cobalt blue, ACP/PVAD, sideways print left (RD5 multi-value coil) (Harrison/photo) - Deegam 40.15.2

Sideways print left from RD5 multi-value coil [10.10.89]

AC39 - 4p cobalt blue, ACP/PVAD (Translucent), sideways print left (RD5 multi-value coil) (Harrison/photo)

Sideways print left, translucent paper/gum from RD5 multi-value coil [10.10.89]

AC41 - 4p cobalt blue, ACP/PVAD, sideways print left (RD6 multi-value coil) (Harrison/photo)

Sideways print left from RD6 multi-value coil [27.11.90]

AC42 - 4p cobalt blue, ACP/PVAD, sideways print left (RD7 multi-value coil) (Harrison/photo) - Deegam 40.15.3

Sideways print left from RD7 multi-value coil [2.10.91]

Optical free phosphorised paper

hf4

HF4 - 4p cobalt blue, OFPP/PVAD, sideways print left (RD8 multi-value coil) (Harrison/photo) - Deegam 40.17.1 - S.G specialised U132A - Stoneham M437

Sideways print left from RD8 multi-value coil [31.1.95]