50th Anniversary Migratory Bird Treaty UnIted States-Canada 1966 Block of Stamps

FIRST DAY OF ISSUE US.AND CANADA COOPERATE TO PROTECT BIRDS, SUCH AS WHOOPING CRANES, WHICH MIGRATE SEASONALLY BETWEEN THE TWO COUNTRIES Art Craft PITTSBUR 1966 MIGRATORY BIRD TREATY 1916 UNITED STATES-CANADA-1966 1963 MRATORY BIRD TREATY 1916 UNITED STATES CAN 1966 50% Anniversary MIGRATORY BIRD TREATY Judson 5. Lindsey UNITED STATES-CANADA 4314 N. Nelson Dr. Peoria Gel CCCCCCC FIRST DAY OF ISSUE COOOOO MIGRATORY BIRD TREATY UNITED STATES CANADA-1966 MIGRATORY BIRD TREATY 1916 UNITED STATES-CANADA-1966 ہے U.S.POSTAGE FIVE CENTS