Denoted as #15 of 6th series of musical books. Consists of three blocks of hollowed painted wood that have moveable metal objects within them to give sounds when shakened. The blocks are joined together by cardboard onto which has been printed a listing of types of books, viz., A Book of Hours, A Log Book, A Workbook, A Psalter, A Hymnal, An Ablum, etc. -- Source of annotation: Marvin or Ruth Sackner.