"Secret Unattainable"
Short Fiction 1942 12,000 words
Included In
Away and Beyond 1952
Transfinite: The Essential A.E. van Vogt 2003
English
Astounding Science Fiction magazine
1942 July Street & Smith
bedsheet Vol 29, No 5 132 pages $0.25

cover art by
William Timmins

Table of Contents

First appearance

3 illustrations by
F. Kramer

Cover & other images: other
Illustration images: other
Data: Walwyn
Space Mail anthology
edited by Joseph Olander & Martin H. Greenberg & Isaac Asimov 1980, etc.

This anthology was later included in the omnibus volume Isaac Asimov's Science Fiction Treasury (1982).

Data: ISFDB
Isaac Asimov's Science Fiction Treasury anthology
edited by Joseph Olander & Martin H. Greenberg & Isaac Asimov 1981, etc.

An omnibus containing two anthologies: The Future in Question (1980) and Space Mail (1980).

Data: ISFDB
Fantastic World War II anthology
edited by Frank McSherry, Jr.
1990 June Baen
paperback 0-671-69881-8 281 pages $3.50

cover art by
Ken Kelly

  Data: ISFDB