Teheuti
I have the same edition from Rider & Compay (3 Fitzroy Squre, London W.1.), but with the two-part box and the booklet that says: "First published 1910, this edition 1972." Below that: "Printed by Flarepath Printers Ltd., Watling Street, Colney Street, St. Albans. Herts." - which probably refers to the printing of the booklet.