WARBIRD ALLEY
The P-40 shirt depicts an E model circa 1943 after the AVG Flying Tigers were absorbed into the USAAF 23rd Fighter Group. The shark mouth is nearly synonamous with the P-40, so it was a natural choice. And again, this pilot is an Ace, which would have been important for to show the morale on the homefront.
Available at the Warbird Alley.