I believe this is what people use for the fender markers when building Lamborghini Diablos or Countach replicas. It measure 1 3/8" x 1 3/8" and it has the wiring on the back. The mounting clips is in good condition.
Price is $25 shipped anywhere in the continental US. Will ship to Canada for additional shipping cost. Don't know how much more it will cost when shipping to Canada, but the price will be $20 + actual shipping cost to Canada.