Published by subscription in a limited edition of 300.
"Hesleyhurst MMXI"--t.p.
OBNB doesn't sell books, but you may be able to find a copy at one of these websites:
A doubt of death by J. C. A. Gaskin. ISBN 9781905784400. Published by Tartarus Press in 2011. Publication and catalogue information, links to buy online and reader comments.
