German parts WWII

[THUNDERBIRDS1965]

Hi,can you help me please for identify this german parts found in the Seine river mud near Rouen.This parts is dated 1937 and the manufacturer logo is a G in a sun?.
It seems there's two little brake pads?
Have you see this kind of parts before?
Thanks for helping.
Laurent.

[paco]

looks like a part of a singer sewingmachine. the feet thing...

[Adrian Stevenson]

I must say I thought the same.

[THUNDERBIRDS1965]

Hi,really!Never think that,but why not?I've looking on the web,no pics from a WWII German sewing machine.Iwould have think to brakes pads from German little trailers,but not sure.
So,thank's for helping.The investigations continue!!!!!!!!
Laurent.

[NickW]

Not seen any sewing machines using castellated nuts with locking pins and locking wires through screw heads either?! No idea what its off, but clearly something where vibration was an issue and does have the look of an aircraft control related component?