New York: Kroy Wen Publishers, Inc., no date (circa 1930). Paperback. 2 volumes, printed wrappers, 9 x 6 inches; ,  pp. Light wear to covers, red pencil note to 1 page in first volume, else very good. Item #21909
Contains detailed analyses of and instructions for applying various betting systems for horse racing. The preface indicates that much of the material was previously published in "N.T.D." One-page catalog at the back of both volumes lists 10 additional Kroy Wen books on track betting. The only Kroy Wen title (have you noticed yet that the name is "New York" spelled backwards?) found on OCLC/Worldcat is "True Story of the Lindbergh Kidnapping" by John Brant and Edith Renaud, published in 1932. Rare.