Two volume set of "Wonderful Models", published by Percival Marshall in 1928.
I have a set of these of my own, they don't come up very often and I don't think they ever made it past a first edition. Percival Marshall, publisher of the "Model Engineer" magazine amongst others, produced this comprehensive two volume compendium comprising much specially-written material from the stars of the day - LBSC and Henry Greenly included - with many projects described (including LBSC's "Helen Long"-derived "Talula" Baltic Tank). There is much good technical reading, written in what was probably the golden era of Model Engineering.
Hardcover, 1148pp in two volumes with many foldout drawings