Were any of the locomotive builder sheets for Mason preserved en mass like the Baldwin ones were at SMU? I'm trying to get information on a Bogie built for the Allouez Mining Company in Michigan (Not the Calumet & Hecla, which had a small fleet of Bogies). I've seen 1 picture of this locomotive, and it looks pretty similar to the 2-6-6t Bogies on the South Park
This is the information I know of it
RR State Name R# Type BN YR Cylinders Gauge
Allouez Mining Company Michigan Gratiot 2 2-6-4t 698 1883 14x16 3'0"