69 Auto transmission where is Vin # located

[Mr70]

Look on the Bellhousing lip first.If you don't see anything there,aim for the recessed machined pad located on the drivers side,just above where the pan meets the Trans.,behind the rubber boot covering the shift linkage.It is directly parallel to the head pipe cominig off the Ex. manifold,so you have to get pretty much underneath the car to see it if it's there.
It can get pretty caked up with gunk over the years so you might have to dig into that recessed area to reveal it.