If you want the meter to match the camera then look for a Leningrad 4 or 8 meter. There's lots about with low prices and, usually, no instructions.
Or search on ebay, again, for a pocket exposure calculator, which is a small plastic disc about 2½" to 3" in diameter. You "dial" in the time, date, weather and subject and the answer comes up. Often they open and sell for pennies.
A little OTT but so what, try a Weston meter (again dirt cheap) and get it checked whilst searching ebay for instruction manuals. They last for ever and with the incident light dome will cover all eventualities for a while but the early versions have limitations in low light because they are self (solar) powered and not an amplified signal from the cell.
Oooops, I nearly forgot to add; if you know anyone who uses 120 film, then ask them for the old empty carton from a roll of Fujifilm as it has a rough/good exposure guide printed inside for the speed of the film in the carton. I just love that "Eidt" button...
Regards, David