The Black Corridor

From Author Wars - https://authorwars.com/publications/the-black-corridor-36040.html

Overview:

Title: The Black Corridor
Author: Michael Moorcock
Year: 1970
Publisher: Ace Books / SFBC
Price: $1.49
Pages: 184
Binding: Hardcover
Type: Novel
Title Reference: The Black Corridor
Notes:
- First hardcover edition (not stated.)
- June 1970 selection of the Science Fiction Book Club.
- First printing has gutter code "16L" on page 181 [verified]; indicates a printing in April 1970.
- Cover art same as the Ace paperback first edition, credited to the Dillons on rear flap.
- "According to Moorcock, 'a slightly, but crucially edited text' [whether from the original Mayflower edition or from the US ACE pb edition is not specified]." - Currey
- "Book Club Edition" on front flap
- SFBC # on rear flap
- No printed price or stated date of publication. Price is from a later SFBC announcement flyer. Date is from the lists provided by SFBC editor Andrew Wheeler to the rec.arts.sf.written newsgroup.