The first is a 64 page magazine published in the US by Jones Publishing Co. of Skokie Illinois. At least six undated spiral bound annuals were produced by Jones. Export likely only published the first volume in Canada.
I haven't found an American version of Model Photography.
I have located only one pulp, Real Western, volume 13, number 6, dated August . It is 100 pages, including covers. The American edition is 116 pages, including covers, the difference being a sixteen page story not reproduced in the Canadian edition. The front cover has a price of 25 cents versus 15 cents for the American edition and the illustrations are poorly reproduced. The inside of the front cover and both sides of the back cover have the American ads replaced with Canadian ads. Three full page internal ads have also been changed in the Export edition.
Real Western back cover