This is rather heavy & intriguing question. Even the Kennblätter from 01.08.41. (ammo under 37mm) didn't helped me, all I found were weapons in original caliber:
6,5mm Flzg MG 401(h) .... Lewis
6,5mm Flzg MG 402 (h) ... Schwarzlose
7,7mm Flzg MG 425 (h) ... Vickers.
In 7.9x57mmR Dutch caliber ( 7,9mm Patrone s S 294 (h)) I found only infantry (cavalry) Schwarzlose MGs (sMG-241,242,243,244(h)).
Very oddly, standard Dutch aircraft MG in this caliber (Browning M.36) is not mentioned!
If you google with "Flzg MG" you get first - this topic question!
As for me, you can spot a "motley towel" in the ring.


