Pictures from a visit to the Paris Museum of Arts and Crafts  (Musee des Artes et Metiers).  A fabulous museum for gearheads and anyone else interested in technology.  A few selected pics that may be of interest:  (all filenames start with a&m...)

files:  a&m...

....rose_engine:  the cams from an 18th century rose engine turning lathe.  The rest of the machine is equally gorgeous

....airplane:  a fanciful early airplane design.  The engine for this thing is equally fanciful, but pictures don't do it justice (just looks like a huge can of worms!)  I don't think this ever flew.

....cit_engine:  cut-away of a Citroen 6 engine

....half_citroen:  the whole (half) Citroen 6

....early_radial:  one of the earliest radial internal-combustion engines, integral with the rear wheel of a motorbike

....file_cutter, file_cutter2:  hand-cranked machine for cutting files, early 18th century

....shaper1, shaper2:  "grooving machine", according to the museum plate, but looks like a shaper to me

....spheres:  only one of many amazing turning examples