This listing is for a vintage RCA WV-520A multimeter.  VoltOhmyst panel meter.  There are NO screws holding the back on.  There is corrosion on the battery terminals.  Sold "AS-IS" for Parts or Repair.  Use the 'super size' feature on the pictures to get a better look.

$9.99 Ground Advantage shipping (in a box) in the United States and calculated shipping for international buyers.  Thank you.