The lid of the inside of the box says made/tested in 1922. Then a sticker over that says it was checked correctly May 3, 1928. Lastly, the red piece off the voltmeter says “Tested OK 12-2-43 HL + PC2″ as far as I can tell(that is written in pencil). The case has a groove in it and it slides right in and the lid clips closed. Very nice piece, bought at estate sale- comes as shown, untested. Unknown if it works or not. This item is in the category “Collectibles\Radio, Phonograph, TV, Phone\Radios\Tube Radios\1930-49″. The seller is “bikesandsuff55″ and is located in this country: US. This item can be shipped to United States, Canada, Bahamas.

• Featured Refinements: Antique Volt Meter
• USES: Testing
• Modified Item: No
• Country/Region of Manufacture: United States
• Brand: Thomson Voltmeter