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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.

2. Coal Seams in Layers of Rock

IDNO:
002140
Title:
Coal Seams in Layers of Rock

3. Miner Marking a Coal Seam

IDNO:
002158
Title:
Miner Marking a Coal Seam