Hi All. Yes again I'm on the quest for a part. I'm looking for an early 'M' series timing cover for my 1937 bike. Part No 66-1906. These were used across the 'M' range from M19 to M23 but only up to the engine upgrade for 1939 or 40. I would like one in good condition that will polish up nicely. The one that I currently have has a huge gouge across it. Thanks, Pete.