This is a 2446C...The "C" refers to the compressor case. Not to be confused with the Rindt, which is the earlier case with screw back. Notice the shape of the lugs...bold and squared ends. The "Rindt" case is smaller and has longer more attractive lugs.

2446C Lug:

2446M Lug:

: I'm being offered this 2446C that (in the pictures at least) looks
: very attractive. But even with quite a bit of research I can't
: seem to pinpoint exactly where in the 2446 lies in the line up
: of the 3 register Autavias.

: It seems to have a third execution dial but with dots instead of
: markers at 3, 6 and 9. Like a "Rindt" but with
: dots....

: Thanks

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