Has first style smaller bumpers, and I think an early S2 (Aug 73+) for black paint in headlight sockets). Bigger bumpers came in 74 for US and then UK/Europe, but no precise change-over date found - may be Nov 74 revamp with 5-spd box, better brakes and full wood dash. Most S2 (and some S1) had a side strip, but again unclear when this happened and why some don't have it; all big-bumpers seem to have it.