The closest match I've been able to find is the one below, in The Architectural Review, from 1919. The tank, however, looks closer in shape to the one shown in the American Review of Reviews from 1915. While the shape of the tank is right on, the water supply for our tank is at the top, not the bottom.
Trenton Potteries published a hardbound catalog of their complete collection, under the title of The Blue Book of Plumbing. The 1921 edition, Catalogue R, came in at about 350 pages, the 1927 edition, Catalogue T, a mere 200 or so. As for Catalogue S, WorldCat lists no copies, so I cannot be sure, but I expect it would be somewhere between the two. These books, like many trade catalogues of the vintage, are extremely rare. WorldCat lists but five copies of Catalogue R and four of Catalogue T worldwide. There are no copies of catalogues O through Q, nor are there any listed before the letter N. As for their locations, there are two libraries that have all three of the catalogued catalogs - Rutgers University and the US Patent and Trademark Office. It'd be great to sit down with copies of these catalogs so that I could compare and contrast them.
[Note: this post brings to my attention that I really need to adjust the template I'm using to more readily show wider images.]
Architectural record By American Institute of Architects - 1912
The World's work a history of our time By Walter Hines Page, Arthur Wilson Page - 1914
The American Magazine - 1915
The American Review of Reviews By Shaw, Albert, 1857-1947 - 1915
McClure's Magazine ... - 1915
The Architectural Review - 1919
The National geographic magazine By Henry Gannett, National Geographic Society (U.S.), Gilbert Hovey Grosvenor, Melville Bell Grosvenor, John Hyde, John Oliver LaGorce - 1922