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You searched for: Date 1947/09/26 Remove constraint Date: 1947/09/26 Topical Subjects Coal mines and mining. Remove constraint Topical Subjects: Coal mines and mining.
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This picture shows the thickness of the coal seam in relation to a normal doorway.

1. Thickness of Coal Seam at Long Branch No. 1

IDNO:
002132
Title:
Thickness of Coal Seam at Long Branch No. 1
Date:
1947/09/26
Description:
This picture shows the thickness of the coal seam in relation to a normal doorway.