Stamps of North Korea, Marine Snails and Fish issue
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postage
1977, Sep 5 Marine Snails and Fish issue - Marine Snails and Fish unwmk p. 12
| - | 2ch | multi | Mactra sulcataria | .20 | ||
| - | 5ch | multi | Natica fortunel | .20 | ||
| - | 10ch | multi | Arca inflata | .20 | ||
| - | 25ch | multi | Rapana thomasiana |
airmail
1977, Sep 5 Marine Snails and Fish issue - Marine Snails and Fish
| - | 50ch | multi | Sphoeroides porphyreus |
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