The T225 set is a devilishly complex issue of 50 subjects. Card backs carry advertising for two series of 25 cards each, series 101 and series 102, with no overlapping subjects. The backs also advertise for a full framed set available for a dollar; the framed set may in fact be a reference to an advertising poster. What sets the T225 series 101 set apart and makes it such a challenge are the full bleed color borders and the different card backs in series 101. As is the case with modern full bleed cards, the slightest wear shows on the series 101 borders. As for card backs, there are ten confirmed different backs in series 101. Variables include brand (Khedival, Surbrug and Khedivial), statistics (with or without), and factory designation (57, 348 or none). “Khedivial” is the toughest to find. Surbrug cards are a definite minority. Statistics and no statistics backs are found in equal ratios. Keys to the set are a portrait of Jim Jeffries not found in any other T set, Abe Attell of Black Sox infamy, plus many other HOFers: of the 25 boxers, more than half are in the International Boxing Hall of Fame.This complete set of 1910 T225 Prizefighter Series 101 is #1 on the SGC registry. Abe Attell SGC 84 NM 7, James Barry SGC 84 NM 7, Johnny Coulon SGC 88 NM/MT 8, Leach Cross SGC 80 EX/NM 6, Jem Driscoll SGC 86 NM+ 7.5, Johnny Frayne SGC 92 NM/MT+ 8.5, Jimm Gardiner SGC 92 NM/MT+ 8.5, Abraham Goodman SGC 60 EX 5, Marvin Hart SGC 80 EX/NM 6, Dick Hyland SGC 60 EX 5, Joe Jeanette SGC 84 NM 7, Jas. Jeffries SGC 60 EX 5, Al Kaufman SGC 84 NM 7, Stanley Ketchel SGC 80 EX/NM 6, Harry Lewis SGC 88 NM/MT 8, Packey McFarland SGC 70 EX+ 5.5, Tommy Murphy SGC 70 EX+ 5.5, Battling Nelson SGC 70 EX+ 5.5, Young O'Leary SGC 60 EX 5, Billy Papke SGC 60 EX 5, WM. Rothwell SGC 80 EX/NM 6, J.J. Sharkey SGC 84 NM 7, Jim Stewart SGC 80 EX/NM 6, Jack Sullivan SGC 60 EX 5, Mike Sullivan SGC 60 EX 5.