#1, October, 1950 -- $0.25 ($25.00) [VG/$25.00] Asimov, Brown, Leiber, MacLean, Matheson, Simak, Sturgeon,
#3, December, 1950 -- $0.25 ($5.00) [VG/$10.00] Jones, Matheson, Merwin, Rocklynne, Schmitz, Simak
#4, January, 1951 -- $0.25 ($3.00) [VG/$6.00] Asimov, Brown, Gault, MacDonald, Reynolds, Robinson, Sturgeon
#6, March, 1951 -- $0.25 ($3.00) [G-VG/$4.00] Asimov, Christopher, del Rey, Leinster, Simak
#7, April, 1951 -- $0.25 ($3.00) [VG-F/$5.00] Anderson, Kornbluth, Leiber, W. Sheldon, Tenn
#8, May, 1951 -- $0.35 ($3.00) [VG-F/$5.00] Asimov, Christopher, Judd, Knight
#9, June, 1951 -- $0.35 ($3.00) [G-VG/$3.00] Judd, Knight, Neville, Pangborn
#10, July, 1951 -- $0.35 ($5.00) [VG/$5.00] Dye, Judd, Leiber, Lesser, MacDonald, Tenn
#11, July, 1951 -- $0.35 ($3.00) [VG/$5.00] Dye, Judd, Leiber, Lesser, MacDonald, Tenn
#12, August, 1951 -- $0.35 ($3.00) [VG/$4.00] Bradbury, del Rey, Guin, MacLean, Robinson
#13, September, 1951 -- $0.35 ($3.00) [VG/$5.00] Heinlein, Knight, Leinster, Lesser
#14, October, 1951 -- $0.35 ($3.00) [VG-F/$6.00] Asimov, Bade, Heinlein, Ludwig
#15, November, 1951 -- $0.35 ($3.00) [VG/$5.00] Heinlein, Nourse, Quattrocchi, Wolfe
#16, December, 1951 -- $0.35 ($3.00) [VG/$5.00] Knight, Kornbluth, Leiber, Vance, Wyndham
March, 1953 -- $0.35 ($4.00) [VG-F/$5.00] Anderson, Christopher, Gold, Holmes, MacLean, Wallace
April, 1953 -- $0.35 ($5.00) [VG-F/$6.00] Leinster, Phillips, Sheckley, Vonnegut, Wellen
October, 1953 -- $0.35 ($5.00) [VG/$5.00] Asimov, Gold, Morrison, Wellen
January, 1954 -- $0.35 ($5.00) [VG-F/$7.00] Bixby, Dickson, Knight, Vonnegut
February, 1954 -- $0.35 ($6.00) [VG/$6.00] Blish, Brown, Dee, Elliott, M'Intosh, Tenn
April, 1963 -- $0.50 () [VG/$4.00] Bone, Knight, Neville, Thomas
August, 1963 -- $0.50 () [VG/$4.00] Clement, Del Rey, Hoskins, Silverberg, Simak
October, 1963 -- $0.50 () [VG/$4.00] Leinster, C. Smith, Tenn, Young
October, 1965 -- $0.60 ($4.00) [VG/$6.00] Asimov, Gold, Leiber, Pangborn, Pohl, Sheckley, Simak, C. Smith
September, 1968 -- $0.60 () [VG/$4.00] Aldiss, Gunn, Leiber, Rocklynne, Silverberg
November, 1968 -- $0.60 ($2.98) [VG/$4.00] Aldiss, Dickson, Hollis, Silverberg
April, 1969 -- 0.60 ($4.00) [NA] Bloch, Laumer, Tiptree
March, 1971 -- $0.75 ($3.00) [VG/$3.00] Benford, Chandler, Malzberg, Silverberg, Tiptree, Yarbro
March-April, 1972 -- $0.75 ($3.00) [VG/$3.00] Asimov, Macfarlane, Rothman, White, Young
May-June, 1972 -- $0.75 ($3.00) [VG/$3.00] Asimov, Fisher, Gerrold, Gunn, Rome
July-August, 1972 -- $0.75 ($3.00) [VG/$3.00] Farmer, Gerrold, Scortia, Silverberg
September-October, 1972 -- $0.75 ($3.00) [VG-F/$4.00] Haldeman, Macfarlane, Neville, Silverberg, Young
November-December, 1972 -- $0.75 ($3.00) [VG/$3.00] Chandler, Haldeman, Herbert, Taves, Van Scyoc
January, 1976 -- $0.95 ($2.00) [VG/$3.00] Darnay, S. Robinson, Russ, Utley
April, 1977 -- $1.00 ($3.50) [SOLD] Bear, Sheffield, Tuttle, Utley
June-July, 1979 -- $1.25 ($3.00) [VG/$3.00] Bunch, Gallion, P. Martin, Peel, Van Vogt
September-October, 1979 -- $1.25 ($2.00) [VG/$3.00] Bunch, Effinger, Lamont, G. Martin, Pohl