I just looked at a 1968 MO block, The block had about 6 identical stamps on it, I was not prepaed for it I will get a few pics in the next couple days. The owner said the car is still around and date was c 28 8 . There was no vin on pad just the v*****MO four times then 2 more times under were the head would be. Has anyone seen this before?

Under where the head would be? The heads were on the motor when it was stamped so I would be suspicious of it.

Sounds like a budding restamper was practicing on Grandma's 307?