1799 Longman, Clementi & Co. Organized Upright Grand Piano

Restorative conservation of the wind-chest

Organized Upright Grand Piano
Organized Upright Grand Piano
DT: finding the last of the runs (wind leaking sideways in chest) Lou Dolive testing for runs between the sandwiched layers of the toeboard. Air pressure is introduced into one channel, and a flag of gold leaf is used to indicate if it is escaping through the neighboring channel.Image by The Colonial Williamsburg Foundation. All rights reserved.

John R. Watson