Metal part with numbers 7830247 and 64 stamped on it, on a workb…

A close-up of a dark, oily metal part, possibly a piston, with the numbers "7830247" and "64" stamped on its surface. The part rests on a white cloth on a wooden workbench, with two wrenches visible in the background.

AI caption October 2019 · Photo 947 of 992