on piece FA-FF, FA with double letter F, a superb strip of six showing plate wear, very neatly cancelled and tied to piece, FF a little close at upper right but otherwise very large margins all round and showing part frames of four adjoining impressions. Exhibition quality. Photo

細節
on piece FA-FF, FA with double letter F, a superb strip of six showing plate wear, very neatly cancelled and tied to piece, FF a little close at upper right but otherwise very large margins all round and showing part frames of four adjoining impressions. Exhibition quality. Photo