Starting with the E90-1 set (1908) and repeated in subsequent E-type cards, and following thru to the T216 sets (1916).....there are a commonality of cards that have a distinctive scenic Blue sky-Sunset-Mountain design that appears to be the artwork of one artist at the American Caramel Co.For starters, here are 5 examples from my collection....let's see your E-cards (or T216) with similar backgrounds ? TED Z