Type 50

The origin of this underprint is unknown.

1868. Unofficial underprint type 50 (over the gum) in black.

a) Vertical underprint, reading upwards

PP171 1d lake-red (SG 43 or G1) 
Plate 105

b) Vertical underprint, reading downwards

PP171A 1d lake-red (SG 43 or G1)
Plate 109

b) Underprint horizontal

PP172 1/2d rose-red (SG 48 or G4)
Plates 4, 5, 6, 10, 11, 13, 14, 15 and 20

Multiples of this underprint are very rare and so far I have located just one example from plate 6.

PP173 1d lake-red (SG 43 or G1)
Plates 111, 118, 123, 125, 140, 144, 148, 149, 150, 153, 154, 156, 158, 159, 166, 168, 169, 170, 175, 177, 184, 187, 189, 191, 192, 195, 197, 200, 201, 204, 205 and 214

PP173a 1d lake-red (SG 43 or G1) Underprint horizontal but inverted
Plate 140

PP173B 1 1/2d lake-red (SG 51 or G6)
Plate 1

PP174 2d blue (SG 46 or G3)
Plates 13, 14 and 15

PP175 2 1/2d rosy mauve (SG 141 or J14)
Plate 13

PP176 3d rose (SG 103 or J30)
Plate 5

PP176A 9d straw (SG 111 or J96) Underprint horizontal but inverted
Plate 4

PP177 1d Venetian red (SG 166 or K3)