The difficulty is the N1 version have that type of canopy too,
The change with the long canopy came to the N5 version, according to my documentation (P-40 Monographs of Kagero book).

Jullian.

That aircraft is a very early P-40N-1, for all intents and purposes a P-40M is externally identical. The earliest "N"s did not have the smaller lightweight wheels. The 5th and 6th .50 cal machine guns were added in the field. P-40N-1 started with serial 42-104428, the aircraft in question is 42-10590. The first two batches of P-40N's (-1 and -5) had a symetrical instrument panel. The -10, -15 and -20 had a similar panel with a small square extention on the left side. The -25, -30, -35 and -40 had a more streamlined asymetrical instrument panel. (the 1/48 Mauve/Eduard kit have the latter, the Hasegawa P-40N & P-40M kits have last two types) . I hope this helps.

Bonjour Julian!
I'm far away from being a P-40 expert, epecially when it comes to small details with the instruments, though I really like this plane and have already built 6 of them in 1/48 scale (E and N from Hasegawa, and a Kittyhawk Mk. III from Italeri/AMT). I just had a look in my Osprey book "P-40 Aces of the CBI". There it says
"2Lt. Phil Adair's first Lulu Belle was a P-40 N-1 and as this photograph shows, it boasted whitewalled tyres on the main gear and tailwheel. The marking on the hubcaps is a flying buzzard holding a bomb in its talons. Like all P-40 N-1s in the 80th FG, Adair's aeroplane carried six wing guns, which was unusual for this model of Warhawk (factory-built with just four guns) and may have been a field modification."
He flew another P-40 N with the name "Lulu Belle" (probably a late type) which I have build last year out of the great Hasegawa 1/48 kit, as I don't have an early type of that version.
Hope this helps a little .....

Happy modelling!
Torsten

Confirmed that the instrument panel did not change till later in the N series