In 1916 published Felix Mendelsohn produced two series of black and white photographic baseball cards that were designed with blank backs and also offered to a variety of companies with their advertisements on the reverse. The different sets have become extremely popular among type card collectors hobbyists building back runs and set collectors alike. Long underrated the challenge of completion coupled with the added layers of rarity associated with the various backs have increased collector interest particularly as type collecting becomes more popular. In addition to offering a number of different advertising backs from these two issues our Summer 2015 auction includes a large number of Hall of Famers and key cards with the tougher Famous & Barr advertisement on the reverse. The St. Louis clothing retailer was an early customer of Mendelsohn's M101-5 issue and continued with the M101-4 series. With aesthetic appeal significantly higher than the assigned grade this #23 card of Three Finger Brown suffers from paper loss on the reverse likely from scrapbook removal. Some pencil marking is present as well and the card is marked by a significant crease and a number of other wrinkles along the top of the card. Still the image quality and contrast are strong the corners square and centering very strong resulting in significant eye appeal for the grade. Population DataSGC Population: 2 total graded 1 at this level 1 higherPSA Population: 1 total graded 0 at this level 0 higher