This instrument is a copy made by the late Werner Iten of the 1623 Johannes Ruckers Mother and Child Virginals kept in the keyboard collection of Würtembergisches Landesmuseum Stuttgart.
Range of the Muselaar
C/E to c3, 1x8' with Arpichordum stop
Range of the Child
C/E to c3, 1x4'
Pitch: 415 Hz