MMD Archives December 2019 Contents of Digest 2019.12.16 Prev  Next Nr Subject Author 01 "Das Mechanische Musikinstrument" In Delivery Uwe Gernert 02 J-Omega Products Again Shipping to USA Wallace Venable 03 Unknown Player Piano Valves May Be H. C. Bay Andrew Barrett 04 Unknown Player Piano Valves May Be Wurlitzer Don Teach