RES.PL.6 MATCHED PAIR LETTERED GB PERF 16 (SG17) AND PERF 14 (SG22) CONSTANT VARIETY. Good used 1854 perf 16 (SG17), heavier cancellation matched with good used 1855 perf 14 (SG22) both lettered GB and showing excellent constant variety PUNCH HOLDER FLAW B SQUARE. SG22 one short perf but a rare and fine matched pair. (Ref 97444).