U.S. military rockets aren't really the kind of thing you'd expect to be sold through advertising. (I mean, don't they really only have one buyer?) So it's worth taking a look at Retronaut's collection of rocket ads from 1947 to 1974. Admittedly, the ads aren't actually meant to sell rockets. Most are just corporate propaganda for military contractors like Northrop, proudly hailed as "builders of the first intercontinental guided missile." My personal favorite is a 1960 ad, shown below, by the Association of American Railroads, promoting the idea of railcar-mounted missile launchers. "Mobile launching pads on wheels will be able to fire missiles of intercontinental range from almost any point along the nation's 220,000 miles of railroad line." Yes, it's the little things we take for granted in a post-Cold War society, like the fact that we don't have ICBMs tooling around on our railroads. Hat tip to Boing Boing.