Just picked up, off E*ay this month, a set of American photography(Feb. 1938-Jan.1939).
Also some Minicams from 1940. The articles are amazingly detailed, even about processes that have disappeared. An a lot of camera information(both famous and infamous) from just the adds. Also got some new information about my "obsession"( }:^)> )- Harry Champlin.
Will keep shopping.