Can anyone tell me what this "mm" script symbol on some 1970'* GM VIN tags means?

I have no idea. I always thought it was a little symbol of some sort, maybe for the plant where the vehicle was built or something.

Have you also seen this symbol on a GM VIN?

Can't say I've noticed it. Not saying it isn't there, but can't say I've noticed it. What cars are these VINs on?

The 2 examples are from 1970'* chevelle.

Interesting, I'll have to look at my older cars to see if I have something similar.

here are 3 GM cars from the 75, 79, an 1980 and a truck from 1980, the truck is the one with the dash pad opening.teh tagi * down there the pic didnt show it well, it has no symbol. Most of these are oldsmobiles but GMC, Pontiax, and Oldsmobile are present. The Oldsmobiles have the *