Type ? (Unlisted by S.G.)
This overprint is from the General Post Office.
This, currently unlisted, overprint is an unofficial overprint in black.
The overprint is believed to have been in use from around 1869 (as the 1d
red plate 133 was put to press on 1st October 1869).
1869. Unofficial overprint type ?? (unlisted) in black.
PP? (unlisted) 1d lake-red (SG43 or G1)