Great Northern Railway Authorization for Expenditure (AFE) 12900, Helmer Mine, Minnesota, 1907.
- US MnSpGNR E0045-003-002-310778
- Item
- 1907
Part of Great Northern Railway Authority for Expenditure Collection
AFE 12900, Helmer Mine, Minnesota, 1907. Interstate Commerce Commission Account Number 12, Track Laying and Surfacing. Series I. Lines East. Other Subject Categories: Track, Industry