The first appearance, according to Scott, was as a serialized novel in 12 parts, published in The New York Herald (Special Fiction Section) beginning October 2, 1910 and ending December 18, 1910. The artist signature is difficult to make out, but Scott claims it is Hadherny. Anyhow, Scott claims this serialization contains 19 full-page (12 in color) and 42 half-page illustrations.
According to Whatmore, The Red Magazine also serialized this novel from December 1, 1910 through March 1, 1911, and Paul Hardy created 21 illustrations for this serialization.
McKay, Scott, and Whatmore claim that Hodder and Stoughton published the first edition in book-form in London on August 28, 1911. Apparently, 13,500 copies were printed, with 4 color illustrations by A.C. Michael, but without any ads at the end of the book. According to Whatmore, 12 proof copies were "compiled, stitched, and trimmed in wrappers, and sent to Hodder and Stoughton" in November 1910.
Doubleday, Page and Company published the first edition in book-form in New York on October 27, 1911. It is purported that the Library of Congress has a copy with the year 1911 on its title-page, but copies with 1912 are usual. Doubleday included the same 4 A.C. Michael illustrations as found in the Hodder and Stoughton first edition. There are no ads at the end of the book. McKay and Scott both agree on the New York publication date, and claim that 5,000 copies comprise the first printing.
See the VisualHaggard.org page dedicated to the illustrations found in various editions.
The images below are of the cover pages of the 9 parts of the serialization that I own: October 2, 9, 16, 23 and 30, November 6, 13, 20 and 27.
I am missing December 4, 11, and 18.
I googled for Hadherny, and found one possible match. The auction website (click the image below to visit it) has the painting below listed as by A.V. Hadherny, but my scrutiny of the artist signature determines the artist to be E.V. Hadherny. When I compare the signature in the painting to the signature on all of the above illustrations, I think this E.V. Hadherny may be the same artist. The illustrator for the NY Herald only signed a surname. So, E.V. Hadherny may not be the illustrator for the NY Herald serialization.
My copy of the Hodder and Stoughton first British edition
Frontispiece and title-pages
Hodder and Stoughton partnered with The Musson Book Company in Canada. The Musson copy is bound to look the same as the Hodder edition. I do not own a copy.
Below, my copy of the Doubleday first American edition original dust jacket. The dust jacket is extremely rare--I have never seen another.
This dust jacket was found protecting a Grosset & Dunlap reprint. See below.
Below, my copy of the Doubleday first American edition
Title-pages: Doubleday first edition, Doubleday later printing, Grosset & Dunlap reprint
Notice the first edition mentions illustrations by A.C. Michael, whereas the other two only mention a frontispiece.
The frontispiece selected for the Doubleday later printing and the G&D reprint is the illustration found at page 122 in the first edition.