Thanks everyone for chiming in! The seller wrote back indicating that the serial number is on the headtube which I thought changed from the rear drop-out in 1070. But Sheldon says 1965:
"Before 1965 serial numbers were stamped onto a rear dropout. Beginning in 1965 serial numbers were moved to the head tube..."
That might explain the chrome forks anyway. I'm trying to schedule a visit to take a peek at it this weekend, assuming that it is still available.
So is this
http://www.angelfire.com/rant/allday...innCodes1.html
wrong then about when the serial numbers moved? Or is Sheldon? (I've been taking Sheldon's word as gospel, but he was human so it is possible that he could have made a mistake now and then.)