This is a Chicago Trucks advert from an unnamed surfing magazine from the 60’s, although it probably shouldn’t be that hard to figure it out. I can’t imagine there was more than one or two tops. Chicago made it’s name in roller skates of all things, and I’m going to hypothesize that they were one of the first companies to manufacture skateboard specific trucks, outside of full setups. Those are composite wheels… I guess it’s possible they could be early 70’s, but if I had to place money on it, I still say 60’s. Dig the three point mounting hardware. UPDATE: Based on this ad, we know an ad with the same illustrations was run as late as 1975, but it features different ad copy. It’s entirely possible that this was leftover stock from the late 60’s.