If anyone can play, I have one I would like to put up. And if anyone knows what it is and anything about it, can you tell me how it operated???

Thanks for any info!

LMG Bergmann MG 15, 1st version. the most popular MG 15 nA ( neuer Art, new version) was air cooled.
Bergmann was the first weapon designer to use aluminium to lighten this class of weapon.

What is funny is that it was first an air cooled light machine gun developped for aircraft use, then converted for ground use with a water jacket before to be converted to air cooling again. a 75 round drum magazine similar to today's C mag was designed for this MG often mistaken with the MG 34 belt container that looks like it.
The MG 15 nA was the model used for the MG 15 made by Rheinmettall right before WW2 for the german bombers firing port MGs with a doubled rate of fire, 1000 rpm instead of 500.
when the Luftwaffe switched to other new MGs, they were used as AA MG but with the aircraft air flow to cool them, it was quickly overheating.

The MG 15 magazine was sometimes used on G43 and K 43 for an increased firepower.

So, this was the flex gun used on the Ju87 "Stuka," the DO17 "Flying Pencil," etc.? Still a most curious looking piece, clip fed and water cooled initially, correct?
Seems sort of ass-backwrds, no? And finally, was this thing blowback or gas operated? I would guess blow-back by being able to double the rate of fire upwards to 1000 RPM cyclic?

Yes. Short recoil with a pecular lock. from an idea Theodor Bergmann patended in 1900. He made a prototype in 1910.

WW2 aircraft use

http://www.ww2aircraft.net/forum/weapons-systems-tech/l...guns-topic-6368.html

Edmond! What's with the "Budlight"?!!!

Eric

Plinking?