Haven't seen many Mark 2s but my 2446C is 109017 ...just behind the one shown by GMT ... Interestingly mine has the fluted pushers and came from a well known source.

: Thanks Jeff!
: The one on the left with the hour bezel is 109126. It came to me
: from the son of the original owner and was in immaculate
: condition. Still has the black paint on the edge of the bezel,
: and looks like it was worn very little. It was originally
: purchased in Germany, and came to the U.S. in the late 70's when
: the family moved here.

: 109010 has a very interesting story and was in pretty bad shape
: when I rescued it. The photo here is after I restored it. It
: came from South Africa and was in the shop of a self taught
: watchmaker. His grandson inherited it and it found its way to
: me.

: :