Summer 1934 issue ~ cover art by Rudolph Zirm Summer 1934 cover art by Rudolph Zirm better image than previously posted
1940 Dell mapback – cover art by Gerald Gregg 1940 Dell mapback 1940 Morrow hardcover 10th whodunnit with Sir Henry Merrivale cover art by Gerald Gregg
cover art by Peter Driben 1942 Lippencott hardcover 1944 Atlas paperback reissue cover art by Peter Driben 4th and last with sleuth Alan Ford