This auction is three (3) publications titled "Profile Publications” #9 The Albatros DV #13 The Sopwith Pup #17 The SPAD XIII C.1" by J.M. Bruce. They are publications focusing on airplanes in English language, specifically featuring detailed information and profiles on the Albatros DV, Sopwith Pup, and SPAD XIII C.1 aircraft. As a vintage publications from Profile Publications, they offer a unique perspective and insights into the history and characteristics of these iconic World War I era airplanes.