Maybe you just picked up some obscure tool at a swap meet and are now wondering what it is. Perhaps the ahooga horn on your Model A is missing its identification plate, or you're trying to decide what aftermarket components on your REO are period-correct. Possibly you're an enthusiast of petroliana, spark plugs, or packaging and product display stands, and you want to see what's missing from your collection. Or, heck, maybe you just like leafing through pages and pages of old tools, parts, car-care products, hardware, trinkets and doodads.

If any of this sounds familiar, track down an automotive equipment catalog like the one featured here. Of course, because they were typically used for a year or two and then discarded, the supply is spotty, though you're likely to find at least a few at a swap meet, and you might even stumble across one in your local whatnot shop.

Check out the mail order auto industry of years ago.