1251
GRAND ACTION REGULATING FRAME, wood, to stimulate the piano string line of the GP. Regulation of the let-off and use as an aid in installing grand hammers can both be performed with this device.
ACTION REGULATINGS FRAME for UP, metal (set in 2 versions). The picture shows the leg and sled construction, which are interchangeable and both are included in each set. Action is free to rotate to any desired position and can be locked in any position.
ACTION REGULATINGS FRAME for UP, metal (set in 2 versions). The picture shows the leg and sled construction, which are interchangeable and both are included in each set. Action is free to rotate to any desired position and can be locked in any position.