P-39 Airacobra „White 19“, 438 iap, 205 iad
by Michal Sekula
P-39Q-10 „White 19“ from 438 iap, latter renamed to 212 giap, in
January 1944 during Kirovograd operation:
White diagonal stripe and blue propeller spinner was the fast recognition marking for 438 iap (renamed to 212 giap on Nov 27, 1944).
Photo from RGAKFD is dated on winter 1943/44, 1st Ukrainian Front:
This photo from http://rgakfd.altsoft.spb.ru/showObject.do?object=1806228408 is dated on the year 1943, and white diagonal stripe is already on the tail:
Blue color on the spinners of the 438 iap Cobras could have been the light blue like on the spinners of the Cobras from 30 giap http://lend-lease.airforce.ru/english/photogallery/30giap/page_06.htm (note yellow number 93 vs. light blue spinner):
Let me thank to KL and Massimo from sovietwarplanes.com for their comments and help.
References and sources of the photos: