For repair 1978 USA Conn cornet. Model 10A is a fancier model than this. I do not claim to know anything about horns. I'm guessing the stamping is worn or blurred from the wear on this cornet.
VINTAGE 1978 CONN CORNET TRUMPET MODEL: 18A 20A 10A FOR REPAIR PROJECT 1980
Vintage 1978 Conn Director Cornet 2 Mouthpieces and original case Model 16a
Vintage CG CONN Cornet S/N L 130762 PAT APRIL 2 1907 1968 Perfected Wonder USED
Vintage Conn Cornet Mouthpiece CONN 1 1910-1940 era
Vintage 1900's CG CONN Cornet "The CONN-QUEROR" S/N 87918L w/Case USED UNTESTED
1978 Conn USA trumpet and Mouthpiece 7C
