Pre war/ post war military surplus pintle hooks. The gray one is believed to be from a m38A1, 1952-1971 has numbers in pictures. Rated for 9 tons. The black one is believed to be from a m show contact info
, no numbers legible. Unknown ratings. This is what I was told from the older gentleman I got them from. I did mild research and this is what I could come up with. They may also fit an m151, M151A2, m715, m37, and M38A1 vehicles. They're definitely era correct military surplus. May go to other military-type vehicles/willys jeeps. 100$ for the black, 75$ for the grey.
Email for more pics and info