I've just got a Mustel-Studio from the Czech Republic, the number is 2732-172.
Here are my first three questions:
- after trying to date the harmonium I noticed all numbers around the above one have 4 digits at the end (mine has only three). Any suggestions why? I think it was made in 1921/22, is that right?
- the harmonium is in the original condition, the only alteration seems to be that somebody disconnected the mechanical action for the Expression. I would like to repair it, but I probably have to open (lift up) the Double-Expression box. I don't want to mess too much with it, since it seems very complicated, so I would like to ask if anybody has a technical drawing of the Expression box (beneath the Double Expression). It would help a lot. Otherwise the Double Expression seem to work, but without an Expression it doesn't do anything.
- some porcelains are missing, so I would like to know if anybody can write the names (disposition) of the Mustel-Studio from that time.
Oh, could you please write in English or German?
Thank you very much,
looking forward to hear from you.
Tomaz Sevsek Sramel