Hi! I found this book in NISHIYAMA foreign book shop Tokyo Ginza. (You already know?)
" MACCHI SEAPLANE RACER , ALI D'ITALIA SPECIALE 26,LA BANCARELLA AERONAUTICA"
http://www.bancaero.it/index_eng.htm
This book shows MACCHI SEAPLANE RACER M33-M39-M52-M67-MC72 with very precise 3 side view drawings, colored side view pictures and cutaway side view pictures of each racer.
Also you find very beautiful colored 3 side view drawings of MC72 which clearly shows the location of skin cooler(wing, float and float support).
Additionally you find side view of following very famous Schneider Trophy racers.
1925 : Curtiss R3C-2, Gloster Ⅲ,Supermarine S.4
1926 : Curtiss F6C-1, Curtiss R3C-2 & R3C-4.
1927 : Supermarine S.5, Gloster ⅣR, Short Crusader
1929 : Supermarine S6eS.5, GlosterⅥ, Fiat C29, Piaggio Pc7,SIAI Marchetti S65
This book has ITALIAN-ENGLISH TEXT,you can study Italian!