The Secret of the Time Vault

{{Tr|Wendayne Ackerman}}

Dated 1st printing of this 1975 Orbit edition. Title page:

• "Futura Publications Limited [over] An Orbit Book"

Copyright page:

• "An Orbit Book"
• "First published in Great Britain in 1975 [over] by Futura Publications Limited"
• "Copyright © Ace Publishing Corporation 1971"
• "The series was created by Walter Ernsting and Karl- [over] Herbert Scheer, translated by Wendayne Ackerman and [over] edited by Donald A. Wollheim and Forrest J. Ackerman."
• "ISBN 0 8600 78426"
• "Printed in Great Britain by [over] Hazell Watson & Viney Ltd [over] Aylesbury, Bucks"
• "Futura Publications Limited [over] 49 Poland Street, [over] London W1A 2LG"

Back cover:

• No art credit or visible signature, art credit given in 21st Century Foss.
• "U.K. 35p Australia $1.25* New Zealand $1.25 Canada $1.25 *Recommended Price"
• "0-86007-842-6"

The novella starts on the first numbered page, 7. Wrap-around art. Gloss cover.