Concrete Mine Stringers

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TITLE TYPE DATE CREATED COLLECTION(S)
Concrete Mine Stringer Forms (1 of 5) Image Concrete Mine Stringers
Concrete Mine Stringer Forms (2 of 5) Image Concrete Mine Stringers
Concrete Mine Stringer Forms (3 of 5) Image Concrete Mine Stringers
Concrete Mine Stringer Forms (4 of 5) Image Concrete Mine Stringers
Concrete Mine Stringer Forms (5 of 5) Image Concrete Mine Stringers
Details for Concrete Stringers Showing Old Method of Fastening Rails Image Concrete Mine Stringers
Profile of Old Stringers with Reference to New Stringers From Bottom of Cribbing Image 1908-03-21 Concrete Mine Stringers
Progress Report on Concrete Stringers at No.4 Shaft Image 1915-02-19 Concrete Mine Stringers