Stamps of Ryukyu Islands, 13.75x13.5 perf
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postage
1968, Oct 10 1968 issue - crabs (1968) unwmk p. 13.75x13.5
| - | 3c | bl & och & blk | Mictyris longicarpus | .20–.30 | .20–.30 | |
| - | 3c | multi | Uca dubia (1969) | .20–.30 | .20–.30 | |
| - | 3c | multi | Baptozius Vinosus (1969) | .20–.30 | .20–.30 | |
| - | 3c | multi | Cardisoma carnifex (1969) | .20–.30 | .20–.30 |
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