This is something I have never seen before. It is a pop up postcard (FOLDER No. 1F Can be addressed and mailed or enclosed in an envelope)
HENNEGAN'S FOLDER No. 1F Prices include Printing and Folding HENNEGAN & CO. CINCINNATI, O (OHIO)
Appx. 3 3/4" x 3" when folded. Unfolded, appx. 6" x 8".
This is a sample advertisement: A PEACH.....1915 CLEAN-UP SALE OF WINTER GOODS. EVERYTHING MUST GO TO MAKE ROOM FOR OUR NEW SPRING SUMMER STOCK. PILOT DEPARTMENT STORE PHONE 117. PILOT DEPARTMENT STORE MAIN ST. LADIES WEAR SHOES MILLINERY
A glamorous female expands when unfolded as she looks coyly back at the viewer.
Greens, oranges and blues. Very colorful and fun!