Sentry

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Overview:

Title: Sentry
Author: Stone
Year: 1954
Type: Interior Art

Editions/Publications:

Unknown. Galaxy Science Fiction, February 1954 (Unknown, Stone, Galaxy Publishing Corporation, $0.35, 164 pages, digest, MAGAZINE)
Unknown. Galaxy Science Fiction [UK], No. 16 (Unknown, Stone, Strato Publications, 1/6, 132 pages, digest, MAGAZINE)