I've got a very similar but slightly fancier Russian clock that I'm assured was a MIG fitting. Maybe, but it is surprisingly heavy for an aircraft fitment.

Originally bought for the three wheeler, but it's not a very easy shape to cut, and when a proper period car clock turned up at the Morgan Three Wheeler club South East Centre auction I bought that and fitted it. Case was just a circle, so fairly easy to cut.

See the clock at the left hand side of the dash.





1930 Super Sports Aero 'The Elk'