I've had many a RCA BP-10 come and go through my collection, but I've never
come across this before.

Original box.

Original 1940 vintage Minimax 467 B battery--one of the first ever made.

Original instruction sheet.

And one barely used BP-10, built on August 10, 1940. The rear leatherette's
fallen off, and I need to reglue it. Aside from some leatherette wear here
and there, the set's near new. Only major flaw--the 467 was still inside
the set, and the positive clip has some verdigris on it.

This one's definitely a keeper!