The Time Tunnel

From Author Wars - https://authorwars.com/publications/the-time-tunnel-309732.html

Overview:

Title: The Time Tunnel
Author: Murray Leinster
Year: 1967
Publisher: Pyramid Books
Price: $0.50
Pages: 143
Binding: Paperback
Type: Novel
Title Reference: The Time Tunnel
Notes:
States "First Printing January, 1967", but is a later printing or possibly simultaneous. Cover and back have photos from show. Back says cover by Jack Gaughan.