Irving's association with "Collier's" began in 1932, and his "Collier's Cops" became a mainstay of the magazine during his 13-year association with it. Kate Osann's "Tizzy" cartoons first appeared in "Collier's". The redheaded Tizzy was a teenage American girl who wore horn-rimmed glasses with triangular lenses. "Tizzy" was syndicated by NEA after "Collier's" folded. The cartoons were in color in "Collier's" but black-and-white in syndication and paperback reprints. After World War II, Harry Devlin became the top editorial cartoonist at "Collier's", one of the few publications then displaying editorial cartoons in full color. During the 1940s, Gurney Williams was the cartoon editor for "Collier's", "American Magazine" and "Woman's Home Companion", paying $40 to $150 for each cartoon. From a staggering stack of some 2000 submissions each week, Williams made a weekly selection of 30 to 50 cartoons, lamenting: Joseph Barbera, before he found fame in animation, had several cartoons published in "Collier's" in the late 1920s and early 1930s. The circulation battle with "The Saturday Evening Post" led to the creation of "The Collier Hour", broadcast 1927–32 on the NBC Blue Network. It was radio's first major dramatic anthology series, adapting stories and serials from "Collier's". The hour-long program initially aired on the Wednesday before weekly publication, but switched to Sundays to avoid spoilers with stories that appeared simultaneously in the magazine. In 1929 the program began to incorporate music, news, sports and comedy with the dramatic content of the show. During World War II with William L. Chenery as editor (1941), "Collier's" readership reached 2.5 million. In the October 14, 1944 issue, the magazine published one of the first articles about concentration camps. It was Jan Karski's "Polish Death Camp," a harrowing account of his visit to Belzec. The now problematic title is explored in "Polish death camp controversy" (under heading "use and reactions"). Karski's book "Story of a Secret State" (which contained the "Collier's" excerpt), was published later that year by Houghton Mifflin. It became a Book of the Month Club selection, and bestseller with 400,000 copies sold in 1944-45. The "Collier's" selection was reprinted in Robert H. Abzug's "America Views the Holocaust: 1933-1945" (Palgrave, 1999).