07/12/1907 Opdyke, Edgar Smith to Dustin (Charles E.) Co
(Ogden Ore Separating Plant; Edison Cement Works (Stewartsville)) Sales and service; Tools and machinery; Engines, boilers, prime movers
[CJ020]  Company Records Series -- New Jersey and Pennsylvania Concentrating Works -- Administrative and Financial Records: Correspondence (1907)
[CJ020AAH; TAEM 150:63]
Courtesy of Thomas Edison National Historical Park.