MMD Archives January 2005 Contents of Digest 2005.01.17 Prev  Next Nr Subject Author 01 Old Coins Found in Automatic Instruments Michael Woolf 02 Rebuilding Pianola with Plastic Unit Valves D. L. Bullock 03 Dial Indicator Gauge for Valve Regulation A. B. Bonds 04 APSCO & Schaff Piano Supply Co. Jim McFarland