Looks to be a '75 or later. Earlier than 74,the shifter was on the rightside,the brake on the left. It's kinda nutty riding one,then getteng back on a "normally" shifted one.
I think it had someting to do with the fact that some Harleys weren't made in the good ol' US of A. I had a little harley that was made by Amachi Motors in Italy. We called em' spagetti harleys. Then the company came home to the US. AMF was the new owner. American Machine and Foundry.
This was the start of a short lived comeback. They did fairly well I think,using the shovel head motor.
They didn't really take off till they introduce the less leaking,somewhat easier starting,less vibratory...Evolution motor.
singles to twins to knuckleheads,to panheads,to Ironheads(like this sportster) to shovelheads,to evolution,to V-rod.
Neat history....crummy bikes thou....
RSD.