Doorknob showing AOC from early 1900's - Paul Coiteux Collection
 

1918
 

1930
 

1938
 

1954 AO News Logo
 
 

Early 1955
 
 

1962
 
 

1969
 
 

1970's
 
 

1975
 

1976
 

1981
 
 

1983
 

1996