Meccano Mag.

Meccano Magazine was started in 1916 by Frank Hornby, inventor of the Meccano hobby engineering sets (and later Hornby model railways and Dinky toys, some hat-trick) that did a brilliant job of keeping the minds of millions of teenage boys off their own nuts, for a while at least.

A bunch of insanely dedicate people have scanned and made availablepretty much every copy of the magazine, which ran until 1981. There's even a searchable index. If you go in there, don't expect to emerge in less than an hour. The bikes, by the way, are from August and October1929.