What kind of battery is this?

It's from a Japanese shaver from 1988, which I am looking to replace. Searching for the number did nothing, and I could not find a way to contact the manufacturer. Any help is appreciated!

Picture of What kind of battery is this?
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Re-design5 years ago
It looks like a nicad. From 1988 it probably is a nicad.
Kirbsome! (author)  Re-design5 years ago
Thanks!