Copyright 1938-1939. Books are numbered 1-12, but there are two different #10 titles for a total of 13. Each is 3.5x3.5” softcover BLB format w/color front cover . Back cover has text noting that book was obtained for 12 ice cream cone coupons. Each has 128 pages. Numbers, titles, and condition are : #1 “Smokey Stover” Fine; #2 “Smilin’ Jack And His Stratosphere Plane” Fine; #3 “Tailspin Tommy On The Mountain Of Human Sacrifice” VF; #4 “Terry And The Pirates Ashore In Singapore” cover wear. Good; #5 “King Of The Royal Mounted In The Far North” tips off bottom front cover and back cover worn. Good; #6 "Dan Dunn Secret Operative 48 And The Counterfeiter Ring” covers worn and .5x1”piece missing from title page. Good; #7 “Kayo And Moon Mullins Way Down South” owners name ink stamp on front cover and lt. creasing. VG; #8 “Buck Jones In The Cowboy Masquerade”.25”hole in front cover. Good; #9 “Smitty’s Brother Herby And The Police Horse”. Fine; #10 “Tom Mix In The Teepee Ranch Mystery. Book appears to have total number of 128 pages, but several pages are duplicates as printed so story incomplete. Fine; Second variety #10 “Tim McCoy Fighting The Redskins”. Fine. #11”Dick Tracy In Smashing The Famon Racket.” Covers a bit creased, ink date inside cover. VG; #12 “”G-Man Vs. The Underworld Chief.” Covers heavily worn and creased. Fair. Extremely rare to find as a set. The only set we’ve offered in our 46 years.