Hungarian MÁVAG Héja II production

[Gizmo]

Hi
I have difference data for Hungarian Héja II fighter production.

According G. Punka "Reggiane Fighters in Action" there is

1st serie - 25 planes (V.4+71 – V.4+95)
2nd serie - 75 planes (V.4+96 - V.5+70)
3rd serie - 100 planes ( 25 to 30 of them unfinished due to lack of engines)

According G. Sárhidai, G. Punka, V. Kozlik "Hungarian Eagles. The Hungarian Air Forces 1920-1945", Hikoki Publications, Aldershot, 1996 and J. Rajlich, Z. Lalak, W. Bączkowski, M. J. Murawski "Sojusznicy Luftwaffe cz.2", Books International, Warszawa, 1998 there is

1st serie - 30 planes(V 471 - V.500)
2nd serie - 99 planes(V.502- V.600)
3rd serie - 66 planes(V. 601-V.666)

So, where is the truth ?