Auction: 166 - The Philatelic Collectors' Series Sale
Lot: 207
Unitrade #2TCvii, 6d Dark grey trial color plate proof on India, overprinted "SPECIMEN" vertically in carmine, top sheet-margin block of four from left pane pos. 9-10, 19-20, with ample to huge margins on the other tree sides, choice very fine;
Sold for
$230