Excellent old duplex gauge made by AC part number 1505413.  As best as I can find was from around a 1934-35 Chevy or Buick or possibly a truck. Mechanical oil pressure up to 30psi and a fused ammeter from 20 amp discharge to 20 amp charge.  Great shape, there are some species of an off white latex type paint on the back, comes right off with a fingernail.  Lens is nice, there is a little bit of dust on the inside of lens.  The only visible damage is at 12 O'clock there is a little ding in the bezel. I took an extra picture of it. It almost appears factory, possibly to keep from vibrating?  Should be able to massage it out from the inside if a person was so inclined.  For something 90 years old it's fantastic. I purchased some vintage automotive trinkets from an estate, all were very well preserved, possibly the gentleman had a collection dating back 50 years or more.  It definitely didn't sit in a junkyard or back yard.

Thanks for looking, happy motoring.

This vintage AC dash gauge is a must-have for any Chevy Chevrolet Buick GM General Motors lover. The instrument cluster features an oil pressure gauge and duplex amps, making it a great addition to your collection. The style is classic and authentic, bringing a touch of the 1930s to your car or truck. It's perfect for those who want to add a unique touch to their interior. The item is in great working condition and is sure to impress any car enthusiast.