Could this vintage aircraft V12 be the oldest crate engine still around?

This is from a current eBay listing for a Hispano-Suiza V12 aircraft engine that’s still in the crate. According to the description, the engine was purchased from a museum and remains in a shipping crate–certainly not the original crate but likely the one from the museum. The photos are rather small, but the paper wrappings on the ignition wires appear to be original, and the seller says it appears that it was never installed. Asking price is $49,900.

The ID plate indicates it’s a 12Xcrs engine, which according to Wikipedia, was produced in 1934 and was rated at 690 horsepower at 2,600 rpm. Take a close look at the front view. Note the wide opening in the center of the prop mount? That was to allow a 20mm canon to be mounted between 60-degree banks and position the barrel to fire through the prop shaft.

The 12X engine featured a 5.12-inch bore and 6.69-inch stroke for a total displacement of 27 liters, or just under 1,650ci. It came with overhead cams, two valves per cylinder, a single-speed supercharger and six carburetors.

Not much else is known about this particular engine. The seller says there are some records from his late father. But we’ve never seen an unused engine this old, certainly not one that makes close to 700 horsepower and in such good shape. Anyone know of another crate engine that’s survived longer?