Arthur Ansley - Model LP-4A - Phono Player - Original Service Manual - 1950

Setchell Carlson - Model 458-RD - Intercom - Original Service Manual - 1950

Operadio - Model 4M25C - Intercom - Original Service Manual - 1950

Masco- Model Midgetalk - Intercom - Original Service Manual - 1950

Operadio - Model 4M25C- Intercom - Original Service Manual - 1950

Operadio - Model $A35-4A55 - Intercom - Original Service Manual - 1950

Aircastle - Model PAM-4 - Phono Player - Original Service Manual - 1950

Operadio - Model 4A35/4A55- Intercom - Original Service Manual - 1950