Busy Bear postcard Series number 79. The art is the work of Bernhardt Wall and the cards were published by the Ullman Manufacturing Company, New York, in the early 1900s. Series Title: The days of the week. Today's card: Saturday ... Going to Market. Stop by tomorrow for the last card in the series ... Sunday. To see all the other days of the week and the back of the cards, please see our earlier posts this week.