Where should the VIN plate be on a 66

[66 lwb cs]

I have a 66 and went to the emission station to get the VIN verified something that is required in my state when registering a vehicle from out of state and we couldn't find the tag anywhere. (He took it off my title instead) however I had call the family member I bought it from and he couldn't remember where is was (He's almost 80) so I was wondering where were the tags at originally? We looked on dash we looked under hood and in the door sill. Any suggestions would be appreciated. Thanks in advance.