Specimen 3c. grey, 5c., 12c., 50c. and $3 plus 1912-21 50c. and $5 overprinted or perforated "SPECIMEN" with additional "SPECIMEN" handstamp in black or violet of the receiving authority, without gum. (7)

Details
Specimen 3c. grey, 5c., 12c., 50c. and $3 plus 1912-21 50c. and $5 overprinted or perforated "SPECIMEN" with additional "SPECIMEN" handstamp in black or violet of the receiving authority, without gum. (7)