The Sixth Galaxy Reader

From Author Wars - https://authorwars.com/publications/the-sixth-galaxy-reader-47376.html

Overview:

Title: The Sixth Galaxy Reader
Author: H. L. Gold
Year: 1962
Publisher: Doubleday / SFBC
Price: $1.20
Pages: 240
Binding: Hardcover
Type: Anthology
Title Reference: The Sixth Galaxy Reader
Notes: Gutter code "D37" indicates a September 1962 printing. Tuck fails to list this SFBC edition in his Author index, but he does in the SFBC article in his Miscellaneous volume. There are several abebooks.com dealer who offer this edition for sale, so presumably Tuck's omission is an error.
OCLC has a record for the trade edition only.