In the 06.10.03 MMD Vincent Thébault asked for Arburo mechanism
pictures.  I know the National Museum [van Speelklok tot Pierement] in
Utrecht has both a large Arburo organ and a smaller, coin-operated
Arburo reed organ.

I think they could be of some help.  At least it's worth a try.  Their
email is: post@museumspeelklok.nl.geentroep [delete .geentroep],
and their website is: http://www.museumspeelklok.nl (available in both
Dutch and English.

Niels Berkers
Koningslust, Netherlands