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RCA Type 88-A
RCA Type 77-D
AN RCA POLYDIRECTIONAL TYPE 77-D MI-4045-E BROADCAST MICROPHONE, 1945-1955, | Simpson Galleries, LLC
RCA Types PB-31, PB-140, PB-144, 44-A, 44-B
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Rca Mic
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RCA 44BX Ribbon Microphone #1440 (Vintage) - Vintage King
AEA R44 Series - Ribbon Microphones | AEA Ribbon Mics and Preamps
RCA 44-BX Ribbon Microphone | Reverb
RCA 44A Ribbon Microphone #1125 (Vintage) - Vintage King