The French Powder Mystery

Triangle Books issued a New York reprint in 1941 from the same xvi + 316 page setting as the Stokes first but in a smaller 19 cm format (Library of Congress, LCCN 42010941) — a Triangle imprint is always a reprint and is the commonest copy mistaken for the first. Later reprints include Otto Penzler Books (1995, LCCN 94030952). A jacket with 'second printing' at the lower front panel, or a copyright page carrying any later-printing line, rules a copy out.