They were bought at a military surplus auction and both have USAF
calibration stickers.

Made by Q.V.S. INC

Part # = 961

Each comes with a shunt, instrument, Multi Range,(P/N= MX-9127/psm-37)

Each comes with a Prod. test MX-1410/U, 0-5000VDC Voltage range multiplier

NO Batteries, although the compartments are very clean and corrosion free

NO +/- test leads with either unit.

One of the lids has a chip missing out of the corner but other wise these
units are cosmetically a 9 out of 10.

I have no way of powering these up. I can take a pic and send if you
request.

For what it is worth, check my feedback @ ebay. ebay ID: cowboy671

Get 'em before they go to ebay.

email to cowboy67(AT)casscomm(DOT)com