[Revi16]

The Revi 3 series was used in a variety of German aircraft during the 1935-1940 time period.

They were also used by the Swiss & Finnish Air Forces, including the Brewster Buffalo and Curtis Hawk series of aircraft.

The Revi 3a & 3c are 12volt units, the Revi 3b & 3d are 24volt units.

There is also a difference in the way the gunsight mount attaches to the sight between the 3a & 3c and 3b & d.
The 3a & 3c attach at the front of the sight much like a Revi C/12D.
The 3b & 3d attaches at the bottom of the sight like a Revi 16.

Regards,
Mike