Lot Of 10 DDR Germany 1973 Protected Birds Postage Stamps Used

1973 DDR Germany protected birds postage stamp set featuring colorful illustrations of songbirds and other protected species. Designs include crossbill, waxwing, bluethroat, and additional bird artwork with German Democratic Republic markings. Good pre-owned condition with visible cancellations and handwritten markings. A suitable addition to a bird-themed stamp collection, DDR philately, or historical postal display.