As most of us OFs are aware, low frequency, 100KC calibration crystals are getting to be like cold pressed latinum. I was just rummaging around in my parts drawer and re-discovered what I thought was one o' these gems, and noticed it was 120 Khz! Does anyone have any idea why anyone would need a 120 KHz calibration crystal? What was it even from? (It does have signs of having been plugged in to a socket at one time). Inquiring minds want to know.