Dates range from Vol. 9 #2 June 1934 to Vol. 25 #12 December 1952. Count of issues by decade are: 11 from 1930s, ten from 1940s, nine from 1950s. Issues include - June-July, 1934; April-May, 1935; Dec., 1937; Nov., 1938; Feb.-Mar., May, 1939; April, Oct., 1940; July, 1941; April, Oct., 1947; April, Aug., Dec., 1948; Mar., Oct., Dec.,  1949; Feb., July, 1950; Jan., Mar., Oct., Dec., 1951; April, July, Nov., 1952. Each is approximately 6-7/8x9-7/8” with page count averaging 144 to 160. Cover artists include: Morey, Fuqua, Jones, McCauley. Cover themes include: aliens, monsters, robots, women in jeopardy. Authors include: Julius Schwartz in April, 1935 issue offering free copy of his magazine, Robert Bloch in Mar., 1939 issue, the first Charles Beaumont story in Jan., 1951 issue. Issues have scattered wear and aging, a few covers totally loose, some have brittle pages. Overall Good/VG. An instant collection. Great reading copies.