Take a Pair of Private Eyes

From Author Wars - https://authorwars.com/publications/take-a-pair-of-private-eyes-289581.html

Overview:

Title: Take a Pair of Private Eyes
Author: J. T. McIntosh
Year: 1968
Publisher: Frederick Muller Ltd
Pages: 173
Binding: Hardcover
Type: Novel
Title Reference: Take a Pair of Private Eyes
Notes: "First published in Great Britain 1968 … on copyright page." - Currey
A selection of the Doubleday Crime Club later in 1968. See here for an image of that edition. Amazon.UK links this image with the Muller edition but "A Crime Club Special" is visible on the cover.
This book is based on a television play by Peter O'Donnell, who is listed as co-author by OCLC for the Muller edition, but not the Crime Club edition.