232 has it's original (per KP, "type 1") *adhesive* label on RH steering head, as does Allan Landry's 226, as does Andy Dixon's 175. Mark would have to weigh in on 97 having a label, i'm going to say it should have an adhesive label, unless it was removed. I have seen these same "type 1" adhesive labels on smaller model, same year Hondas. I owned a lovely 900 mile original 69 CL175 that had this type 1 label.
To date, we have not seen the "type 1" adhesive label on any Sept.69 frames; only "type 2" riveted plates. I would hazard to say, every CB750 from #1 had an adhesive label, until, at least through July.69. We've asked for BB readers to write in what sort of label/plate the Aug.69 frames have, but i don't think we've had a response, yet..
Around 2002, I purchased locally, a German K1.
IF i remember correctly, it's riveted vin plate was on the LH steering head, opposite USA placement...... And, it seems, the stamped vin was on the RH steering head. And the plate looked nothing like a USA ("type 2") riveted plate. If my memory is not correct, then i've got another chance to be wrong....
Chris R could weigh in on this topic, he has familiarity with these "type 2" riveted tags, both non-USA and USA.
The type 1 adhesive label is not as thick as the riveted type 2 plate, but to my way of thinking, to call the type 1 a label is sort of a "mis-description," even though i call it a label myself, to distinguish frome the later type 2 plate. If you've ever removed one of these type 1 "labels," you'll find out pretty quickly it's a pretty thick piece of "foil," really more like a plate. And not thin like the "oil" label on the RH side cover or the "exhaust" swing arm label, which are more sticker-like. sheesh, words, semantics. label, sticker, plate. whew.