Here is the Nice 1st Edition 2014 Refference Book :Flight Badges of the Allied Nations, 1914-1918, Volume I - The French, Russian, and Romanian Air Services.
(ЛЁТНЫЕ ЗНАКИ РАЗЛИЧИЯ ГОСУДАРСТВ - СОЮЗНИКОВ, 1914-1918, Том I - Авиационные службы Франции, Румынии и России).
New unused.Hardback. 315 pages. English text. 7 3/4" x 11 1/4"
This book is rich in content and history, as well as large format full-color pictures. Covers: badge qualification, training, and details on the many fakes. This new work on the Allies Air Services contains never published information and pictures on what has been a very difficult area to research.
Sells for $80 if you look other platforms..
This is a must for the serious aviation historian and collector.