The Past Through Tomorrow

From Author Wars - https://authorwars.com/publications/the-past-through-tomorrow-405929.html

Overview:

Title: The Past Through Tomorrow
Author: Robert A. Heinlein
Year: Unknown
ISBN-10: 0425037851
Publisher: Berkley Medallion
Price: $2.95
Pages: 830
Binding: Paperback
Type: Collection
Title Reference: Methuselah's Children
Notes:
- "Tenth Printing" stated on the copyright page.
- No stated date of publication but probably printed circa 1979/1980 based on the catalog numbers of Heinlein titles printed on the back pages.
- Cover art appears to be a generic space design. Artist/designer is not credited.
- This printing also appears as part of the 5 book boxed set titled "Stranger in a Strange Land: The Great Science Fiction of Robert A. Heinlein" Berkley Medallion 0-425-045158-8 $11.70. Illustrated with the art work from the cover of "Stranger in a Strange Land" 49th printing.