TM 11-246B Radio Set SCR-503-B (Direction Finding) Technical Manual with Original March 1944 Addenda Mother's Day with signs of use including

with signs of use including minor scratches and paint wear

often with a classic pistol grip and Monte Carlo comb

and minor age discoloration

the handle is intact with expected wear on the leather washers

TM 11-246B Radio Set SCR-503-B (Direction Finding) Technical Manual with Original March 1944 Addenda Mother's Day with signs of use includingOriginal World War II War Department Technical Manual TM 11 246B covering the SCR 503 B Direction Finding Radio Set, dated March 4, 1944. The SCR 503 B was a mobile radio direction finding system used by Signal Corps units to locate radio transmissions and assist with communications intelligence, navigation, and tactical operations. This manual contains operating procedures, technical data, maintenance information, and equipment specifications.