I started with an American Beauty Rose, moved on to Gladiolus, tackled Geraniums, and now I've done some Nasturtiums. Image was from a vintage Sioux City Seed Company packet.
The first page of a two page letter from a son working for Piggly Wiggly in Denver, to his father in Glasgow. Recognizable image from predominantly a Southern market, although I believe there was a Piggly Wiggly in Northeast Montana at one point.