52 (115) 1928 2½d on 2d purple-brown K George V South Georgia Provisional surcharge (SG Type 12), only 1179 surcharged, a scarce key stamp, seldom seen, undercatalogued, signed "T.A." (Thomas Allen - philatelic advisor to K George V), with photocopy of the BPA certificate for a block of four that this is the bottom-right example.
