Lot 51405 – 1898 5c on 1/2m blue-green, second printing, used, pair, inverted surcharge variety, the types of overprint

1898 5c on 1/2m blue-green, second printing, positions 1 and 2, used pair, tied to piece by cds, with the inverted surcharge variety, both types of overprint represented (Scott 190a and 191a), some climate discolouration, a rare opportunity to acquire a combination pair illustrating the error; cert CPSA (2004); ex Tows.