Mandarin ducks on post stamp

Keywords:

collection, stamp, picture, communications, postage, mail, post, postmark, zigzag, canceled, mark, philately, symbol, USSR, soviet, Russia, Sikhote-Alin, reserve, wild, wildlife, woodland, mammal, animal, brute, brown, fauna, bird, mandarin, duck, aquatic, branch, drake, fowl, swimming, waterfowl, nature, zoology,