These are EMICO
DC VOLTS Panel Meter
0 to 15 volts

Meter Face: 2.25 inch wide x 2.25 inch tall
Panel thickness: 0.25 inch
Body depth (behind panel): 0.65 inch
Mounting stud length:0.53 inch
Overall depth with terminal posts: 1.20 inch

These are factory new parts. They have never been installed and have not been recovered from manufactured electronic components.