I'm working on a novel set in the 1920s. I've come up with a bunch of notes derived from novels written then and travel guides that I can find, but they don't really touch on things like clothing and other consumer items.
I was looking for a Sears Catalog from that era, or the British equivalent (Herrod's?), but all I could find on the Internet Archive is this
Which is a 1920-1921 Eaton's Winter Catalog. It's almost exactly what i wanted, except it's Canadian. Which is very close, but not quite