Spy

From Author Wars - https://authorwars.com/books/spy-645153.html

Overview:

Title: Spy
Author: Sentz
Year: 1954
Type: Interior Art

Variant Titles:

1956. L'espion
1959. Spia

Editions/Publications:

Unknown. Galaxy Science Fiction, October 1954 (Unknown, Sentz, Galaxy Publishing Corporation, $0.35, 164 pages, digest, MAGAZINE)
Unknown. Galaxy Science Fiction [UK], No. 24 (Unknown, Sentz, Thorpe & Porter, 1/6, 128 pages, digest, MAGAZINE)