Struycken monochord (cased) made by H. Pfau of Berlin circa 1930

1930

Monochord with adjustable sound box

Monochord with notched base

Monochord with triangular tapering hollow base

Monochord with sound box in channel shaped base board

Monochord with adjustable sound box

Monochord with tapering end

Double monochord mounted on 'H' shaped framework

Monochord