Black Crusade

From Author Wars - https://authorwars.com/publications/black-crusade-298446.html

Overview:

Title: Black Crusade
Author: Arthur Machen
Year: 1966
Publisher: Corgi
Price: 3/6
Pages: 158
Binding: Paperback
Type: Collection
Title Reference: Strange Occurrence in Clerkenwell
Notes: "John Baker edition published 1964 Corgi edition published 1966" on copyright page
Cover art not credited