I got this instrument and some other electronic items from a woman whose husband had died. I am guessing it is some kind of frequency counter. I don’t have a manual and the company who made it obviously was not proud enough of the instrument to put their name or model number on it. I anyone knows what make/model it is I would appreciate the help. I would like to be able to use it. [img] 
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Hi, I believe this is your instrument:
https://www.radiomuseum.org/r/fluke_multi_counter_1952a.html
https://www.youtube.com/watch?v=U_ZXf7BY79w&t=53s
I hope it helps and…it looks to be a nice instrument. Great catch 🙂
Thanks, Ovi4, that is exactly what it is. Being a Fluke, you would think that they would label it as such, but there is no indication that’s who made it. Thanks again.