Stamps with this color combination:
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Description: gray blue & gray green
Abbrev: graybl&graygrn
Used by 2 stamps: (See all uses as list) France postage 12/6/1975 1.90fr issue=Regions of France d=Poitou-Charentes unwmk perf=13 North Korea postage 5/14/1955 1w issue=Admiral Li Sun Sin d=1957 Reprint. Perf: 10 or Imperforated unwmk imperf |