Detailed photographs of the Coronet Midget and Cameo are now at

http://www.submin.com/16mm/collection/coronet/index.htm

I am still waiting for a list of what the varations are in a
collection of 50 ...

and of the Shincho Seiki Darling 16 at

http://www.submin.com/16mm/collection/darling/index.htm

I have been told that there are over a dozen variations of the Darling
16, but details of what these differences are was not forth coming. So
far I have only found three (as shown) and all others pictured are one
of these three variations - as far as it is possible to determine from
the photographs.

http://www.submin.com/16mm/collection/petie
for Petiw, Tux cameras

and

http://www.submin.com/16mm/collection/whittaker
for Micro 16 and Pixie

The Gami section has also been started

http://www.submin.com/16mm/collection/gami