Model 27-01 C62 , patent number 2715711 Cast metal housing in deco style. Volts , RPM , Vacuum & Fuel pump , Dwell , Advance , and timing light 6/12 volt , 4/6/8 cyl It lights up , voltmeter registers, so other functions of that gauge should work ? Vac/ FP gauge registers I'm not able to test the timing light or advance. The leads are good , one repair where a lead hit manifold? See the photos, neat piece, heavy Sold as display piece , you might get lucky NOTE , somehow the left glass panel got cracked. Easy replace, but I'll lower the price $65 plus shipping, send zip code NOW $40 USPMO or PayPal , buyer handles fees Send a Private message Thanks Roy