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Title
USSR - CIRCA 1990: Cephalaspis, trout-sized detritivorous fish that lived in estuaries of the early Devonian #301563800
Description
USSR - CIRCA 1990: post stamp 20 Soviet kopek printed by USSR, shows Cephalaspis, trout-sized detritivorous fish that lived in estuaries of the early Devonian, circa 1990
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