Lot of 17, each 2x2.5" w/eight pages. From a set of 60 issued in the 1930s. ACC# R25. Fronts feature book cover design, pages have bw and color art. There are eight different subsets w/either seven or eight titles per character. This lot includes full subset of seven (plus one duplicate) for Crafty Keen The Detective. Others are Corporal Blake (2, 4-8) and one each for Hal Hunter #6, Yip Roper #5, Mirtho The Clown #4. Seven Keen's have .25" fabric tape strip across top back margin but are o/w very clean and sharp copies. Others have scattered degrees of wear/aging. Lot VG to EX w/a few NM.