A Tale of the Exodus
First appeared as a serialization in The Cornill Magazine, January 1918 through October 1918. This serialization has no illustrations.
McKay, Scott, and Whatmore claim that John Murray published the first edition in London on October 31, 1918. The ads at the end of the book are not dated. McKay and Scott claim that 10,000 copies were printed.
Longmans, Green and Company published the first American edition on November 14, 1918. McKay and Scott both agree on the publication date in New York. The American edition has a frontispiece illustration by Enos B. Comstock. The ads at the end of the book are not dated.
A newspaper in Butte, Montana also serialized this novel, and it has at least one illustration, but I don't know more than this (see below).
See the VisualHaggard.org page dedicated to the illustrations found in various editions.
I do not own any of the books pictured below, unless noted.