Our 78 key Decap plays at a nominal pressure of 8.5 inches wg.  This is a
fair organ  named "De Tovenaar" (it was originally built as a fair organ)
and one might expect the pressure to be high. According to Authur Prinsen
this instrument was built between 1928 and 1929. This information he
said he verified with "the only still alive Mr. Decap" (many years ago).

I hope that this information is of some help to the party who was trying
to obtain pressure information.

Don.