50th Anniversary of American Automobile Association 1902-1952 - Safety Block of Stamps

SCHOOL SLOW SAFETY Ant Craft 50th Anniversary OF AMERICAN AUTOMOBILE ASSOCIATION ANNIVERSARY FIRST DAY OF ISSUE AMA 1902 1952 CHICAGO MAR 4 9 AM 1952 AMERICAN AUTOMOBILE ASSOCIATION 50TH ANNIVERSARY 1902 1952 AMA U.SJ AMERICAN AUTOMOBILE ASSOCIATION CAN 50THANNIVERSARY 1902 1952 U.S.J AMERICAN AUTOMOBILE ASSOCIATION 50TH ANNIVERSARY 1902 1952 AMA 3a U.S.P AMERICAN AUTOMOBILE ASSOCIATION 50TH ANNIVERSARY 1902 1952 U.SJ 3