USA - Poster stamp. c.1930 (US-213067)

It's my first poster-card and (although I've never thought of this type of cards before) I like it. I think it's also a specific type of art and I'd like to see more postcards like that. I don't know, what more I could write about this one, because the only information on the postcard is that now it's in Retrograph Archive in London :)

US-213067