Late bikes could have high handlebars, there were 3 types commonly seen, high low, and CL version with cross bar. High and low were factory.
Signals were available on international models and a option. Common on bikes bought by servicemen and brought back. My bike is a late 1970 production for US epa stds but it has signals, has a plate on right steering stem of fork... the members on Yahoo S90 group had never seen one that late nor the plate on the stem.
68 was late enough for chromed fenders, but 66 was too early for any market. Chrome rear fender has two posts that insert into a rubber grommet for front of rear fender mount near chain height in center of frame, painted fenders attached with a bolt