Report of the president and directors of the Pittsburgh and Boston Mining Co. of Pittsburgh, with accompanying statements from the treasurer ....
Publisher: Pittsburgh and Boston Mining Company of Pittsburgh
Place of publication: Pittsburgh, Pa
Language: eng
Subjects: Copper mines and mining
Other titles: Report, Pittsburgh and Boston Mining Co.
Notes: Description based on: 1860.

Cover title: Report, Pittsburgh and Boston Mining Co.

None published, 1871-1878; final report published l879.