McKay and Scott claim that Simpkin, Marshall, Hamilton, Kent and Company published the first edition in book-form in London on October 25, 1920.
McKay and Scott also claim that J.W. Arrowsmith published the first edition in book-form in Bristol on November 4, 1920.
McKay and Scott claim the Arrowsmith first edition comprises 3,000 copies. It is unclear if this number includes the Simpkin first edition copies, but I believe it does.
The title-page of the British first edition first lists J.W. Arrowsmith (Bristol), with Simpkin, Marshall, Hamilton, Kent and Company (London) listed second.
Longmans, Green and Company published the first American edition August 5, 1921. McKay and Scott both agree on the publication date in New York. The ads at the end of the book are not dated.
SMITH AND THE PHARAOHS first appeared in the December 1912, and January and February 1913 issues of The Strand Magazine.
MAGEPA THE BUCK first appeared in Pears' Christmas Annual 1912.
THE BLUE CURTAINS first appeared in 1886 in The Cornhill Magazine without illustrations.
THE LITTLE FLOWER may have appeared earlier, but so far no evidence of this.
ONLY A DREAM first appeared in Harry Furniss's Christmas Annual 1905 under the title A WEDDING GIFT
BARBARA WHO CAME BACK first appeared in 1913 in The Pall Mall Magazine.
This binding with light blue cloth with navy blue titling is assumed to be a later issue or later variant binding