Portfolio de luxe
Publisher: Potomac Refining Company
Published: 1910
Place of publication: New York, N.Y
Language: eng
Subjects: Potomac Refining Company; Mines and mineral resources; Illustrated works; Description and travel; Views
Notes: "This book is no. 723 of the limited edition of one thousand copies printed for stockholders."

Views of the company's mines on the Potomac River 65 miles upriver from Washington, D.C.