Ahh, I should have added some additional dates in my time-line of the Kleinschmidt Wheatstone Perforator.
1952 - The Navy's AN/FGQ-3 contract with Teletype for perforator plus REC32 p/s (NObsr-51666, $990 ea.)
1959-60 - The Navy's MX-491A/U contract with Boehme for perforator (NObsr-81318, $1500 ea.)

Thus my supposition that Boehme took over keyboard perforator manufacturing/sales from Teletype

One Navy logistics document I have associates these with the AN/MRC-10 mobile communications unit, 
but I am pretty sure that is a typo for AN/MRC-1. Were the Marines still using high speed Morse in 1960???

n.b. ya learn something new every day, or maybe something old....
The AN/MRC-1 was a 1944 mobile high speed Morse comms unit - including a keyboard perforator, keyer, ink recorder, etc. -

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Nick England K4NYW
Chapel Hill NC
www.navy-radio.com


On Wed, Sep 23, 2026 at 11:38 AM Duncan Brown via GreenKeys <greenkeys@mailman.qth.net> wrote:

......These perforators were used up through WWII and it may have been that Teletype Corp. could not supply them fast enough during the war, so the government also gave a contract to Boehme.

Duncan Brown, K2OEQ
USASA    31J30