“The Hammering Man” (also published as “Decidedly Odd”) is part of Edwin Balmer and William B. MacHarg’s Luther Trant series, a 12-story sequence of mysteries featuring a detective armed with psychoanalysis. (It doesn’t hurt that Trant also has a keen analytical mind and can unravel the greatest of puzzles). The series began in 1909 in Hampton’s Magazine and was collected as The Achievements of Luther Trant in late 1910. In "The Hammering Man," Trent must unravel the puzzle of a advertisement with ties to Russia and a cypher with a hidden clue.
Black Cat Weekly #43
Victoria Weisfeld, John Varley, Daniel Marcus, Robert Lopresti, Isaac Asimov, George O. Smith, Murray Leinster, Robert Silverberg, Edwin Balmer, Nicholas Carter
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Ruth of the U. S. A.
Edwin Balmer
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Black Cat Weekly #6
Edwin Balmer, Dashiell Hammett, Barb Goffman, A. R. Morlan, E. Nesbit, John Gregory Betancourt, Ralph Milne Farley, Bobbi A. Chukran, Hal Charles, Dwight V. Swain
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Keeban
Edwin Balmer
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Black Cat Weekly #4
John Boyd, Todhunter Ballard, Paul Di Filippo, Nina Kiriki Hoffmann, Lester del Rey, Meg Opperman, Hal Charles, Bryce Walton, Edwin Balmer
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