On further review...
My 1980 comment is in error. I just looked through my Log Book Pro last night and there was nothing in the remarks section when I got my commercial. But I don't have any endorements in it.
Looking in an old reg book from 1974 (with both the old and new Part 61s) the prior to 01Nov74 61 has nothing about high performance or complex. The "new" 61.31 (e) says, "A person holding a private or commercial pilot certificate may not act as pilot in command of an airplane that has more than 200 horsepower, or that has a retractable landing gear, flaps, and a controllable propeller, unless he has recieved flight instruction from an authorized instructor who has certified in his his logbook that he is competent to pilot an airplane that has more than 200 horsepower, or that has a retractable landing gear, flaps, and a controllable propeller, as the case may."