[AJD] D stationary engine

[Eileen Brazil]

Hi there! I'm trying to find out what year a stationary engine was produced. It looks like a unstyled D and the serial number is W 4108. The engine is being used to power the Yamhill Valley Heritage Center's vintage sawmill here in Oregon. Any information or pointers to where to look for info will be greatly appreciated. 

I used to be on this list a lot back in the late 1990's. I own a 1949 D, a 1956 420, and a 1955 40 crawler. Thanks folks!!

Eileen Brazil