It's been several years now since I first noted (ISMACS News, issue no. 49) that early versions of this desirable miniature featured a walking foot rather than the more conventional four-motion feed. A similar feature is well known on early Müller no.1 machines - see patent elsewhere on site. To date I still haven't come across any more examples of this earlier model.
Photo top right shows the machine itself, the illustration below dates from the turn of the 19th century and clearly shows the walking foot feed.
Without doubt this is a scarce machine, if further examples come to my attention, this page will be updated.
photos GD Collection.
G.D. May 99.

Update - a further example was recently sold in the UK and a fellow collector from Europe reports that there is now one in his collection - so they are about! Get searching....
April 2000.