Mass Market Magazines
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Vol. 4 #4
Published Apr 1968 by Challenge Publications.$9.00
Volume 4, Issue 4 - April 1968. 8" x 10.5", 66 pages, B&W. Cover price $1.00.
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Vol. 5 #5
Published Jun 1969 by Challenge Publications.$9.00
Volume 5, Issue 5 - June 1969. 8" x 10.5", 66 pages, B&W. Cover price $1.00.
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Vol. 6 #1
Published Oct 1969 by Challenge Publications.$9.00
Volume 6, Issue 1 - October 1969. 8" x 10.5", 66 pages, B&W. Cover price $1.00.
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Vol. 6 #3
Published Feb 1970 by Challenge Publications.$6.00
Volume 6, Issue 3 - February 1970. This magazine contains news and articles pertaining to aircrafts and airlines. 8" x 10.5", 66 pages, B&W. Cover price $1.00.
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Vol. 7 #1
Published Oct 1970 by Challenge Publications.$9.00
Volume 7, Issue 1 - October 1970. 8" x 10.5", 66 pages, B&W. Cover price $1.00.
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Vol. 7 #3
Published Mar 1971 by Challenge Publications.$6.00
Volume 7, Issue 3 - March 1971. 8" x 10.5", 66 pages, B&W. Cover price $1.00.
