1955 Packard Clipper 12 volt dash panel clock Borg Corp hotrod vintage

Mid-century vintage automobile panel clock. We've been told that this is a 12 volt clock for a 1955 Packard, probably a Clipper. It is marked Geo. W. Borg Corp - Chicago and is stamped Apr 55 (we think? although the second digit is incomplete). The clock hand are free to move, but we haven't tested it further.

This measures about 2.5" across the clock face, 2" long and 4.5" across the mounting ears. The housing is aluminum. This has age and soil from storage and we're selling it for restoration or parts.