This ribbon mic is French Made, and is similar in internal design to the RCA 44.
The owner of this microphone was a little upset when I explained what I found inside the microphone. He had just purchased the microphone online, and it came in for repair sounding “thin”. Someone had installed this dynamic microphone element in the microphone, and wired it up to the XLR connector in place of the ribbon micMotor assembly with screeningNew ribbon installed and tuned in the mic.