POSTAGE DUES: 1907 ½d - 1/- (SG D1-D7). Full Set F/M large part OG each handstamped "SPECIMEN" type TUN1 in violet (by the Tunisian Post Office as the Receiving Authority applying the handstamp to their distribution from the UPU). 3 with perf defects at upper left where removed from ledger sheet. Rare, a unique set from the Tunisian UPU specimen collection. Photo-cert: BPA. See certificate below.
