Well....I am definitely old enough that I should remember them. I was the National Warranty and Customer Relations Manger for US Suzuki Motor Corp. from 1974 to 1984. Totally fun industry, every year was cutting edge technology. The factory race teams were next to my office area. Got to meet them all, Mark Blackwell, Roger Decoster, Joel Robert, Terry Vance.... Times were a LOT simpler.
I looked really hard at the photo of the bike in the IH. Could be a Suzuki, but maybe that emblem is a Yamaha.
anyway, motorcycles are way fun, I still have one, and maybe someone will bring me an old 305 Honda Scrambler for my birthday....
Chip