Here are two pics of the AVG Hawk 81 "white 38" I found via the net.
View attachment 748811
View attachment 748810
the source:
Curtiss Hawk 81A AVG 23FG2PS White 36 P-8123 Edward Rector Burma 1942
PS. I have found that the 'White 38" was flown by Henry Geselbracht and should have the CAF number P-8177, MFG 15940, RAF AM487. The CAF number P-8138, MFG 15834, RAF AM381 was the "White 57" according the roster accessed with the link below.
the info source:
Flying Tigers: Curtiss H81-A3 aircraft
Additionally , there is a profile of the "White 38" both in the Combat Colours no.3 and Warpaint no.77. Both are with the panda and panther emblems but of the different camo scheme and the layout of the shark jaws. Anyway the shark jaws are extended to the area below the last exhaust pipe like in the two images above. The CC book doesn't provided the CAF number and the Warpaint one says it was P-8200. IMHO it is not correct because there is also a profile of the "White 36" that has the same CAF number. As mamo serves there wasn't a such number for the Chinese Hawk 81As. What is more the CC publication stated the pilot was Franklin Schwartz but not Henry Geselbracht.