something I forgot to mention yesterday:
if you are looking for THE book on the subject,it is:
SOVIET AIR FORCE FIGHTER COLORS 1941-1945
by Erik Pilawskii
Classic Publications
ISBN# 1-903223-30-X
it is available from:
http://www.classic-books.co.uk
http://www.squadron.com
or you can get it where I did,
http://www.specialtypress.com
OUT OF FIVE STARS I GIVE IT SIX !!!