[PLAKE]. If you find a bird with a ring take it off and send it back, stating the date and locality where it was found....

[PLAKE]. If you find a bird with a ring take it off and send it back, stating the date and town where it was found. Address the envelope in this way and expect a reply : Reply to official summons. Official matter free of postage. Ornithological Station. State Zoological Museum. Warsaw Wilcza 65. printed by W. I. G., Warsaw 1947. printed on one side, tri-color (White-blue-black). Format 35/48 cm. Folding trace, small tears in margins. Rare. (ZR)