Probably a Mauser of some sort. Although not unlike a Borchard.

Looks as if she's dancing on a submarine in the High Alps.

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https://en.wikipedia.org/wiki/Borchardt_C-93

Claverhouse said:

Probably a Mauser of some sort. Although not unlike a Borchard.

Looks as if she's dancing on a submarine in the High Alps.

.

https://en.wikipedia.org/wiki/Borchardt_C-93

Judging from the propellers I think it's a giant bomber plane. That technically makes it an anachronism considering that it's not a biplane common in WWI but rather more in the style of a B-29, common in WWII.