used Block Larger Than four 2XU1 -- ditto 10f. perf. 12 [31] in a block (3x2) [26-28/31-33] cancelled by "BOMA" single ring d.s., some gum staining only faintly visible from trace. Scarce. COB 49.

細節
used Block Larger Than four 2XU1 -- ditto 10f. perf. 12 [31] in a block (3x2) [26-28/31-33] cancelled by "BOMA" single ring d.s., some gum staining only faintly visible from trace. Scarce. COB 49.