It was only £3 and seemed in pretty good shape, so I thought I’d give it a good home and maybe even use it.
After a bit of googling and a closer look at the mechanism I’ve realised this is a two speed drill, probably a Stanley 905:
The large cog and crank handle assembly can be removed and placed in the other hole to give a slower speed.
The only marking I’ve found on it apart from the “Stanley” and “England” is an alphanumeric string which looks something like “C0526 Q205”
If anyone can tell me what those letters and numbers mean I’d really appreciate it.