So here it is
Nr 1329 Nieuport 12 (Beardmore build) RFC
Nr 1330 Nieuport 12 (Beardmore build) RNAS
Testbuild is Nr 1329. RNAS had less PC10 paint
The catch was in the different engine cowling and rudder. Beardmore produced Nie12 had those features.
And now the original Nieuport version (with half open engine)
Bruno