In MMD 040627 Phillip Dami asks for the world's smallest self-playing
pipe organ.  I don't know it, but I know which one is the smallest one
in my collection:

It is hand cranked Bohemian(?) Vogel-Orgel [bird organ], made by Franz
Rieger.  It is the usual construction (pinned cylinder, clavis, bellows)
sitting in a wooden box 205 x 150 x 135 mm, and with nine closed wooden
pipes mounted under the box.  This organ plays seven melodies.  The
French serinettes normally are larger (e.g. 270 x 200 x 160 mm).

If the size of my organ could compete with other "smallest organs",
I am open to provide pictures of it.

Regards from Germany
Christian Greinacher