Front:
M-7 Vaulted Arches in Modern Mine
2A889-N
Back:
Steel and concrete structures replace timber
props at many places in the modernized mine.
The picture shows a double track section of a
gang-way far underground. The high vaulted
roofs reflecting the head lamps of the passing
trains of mine cars and the pencil shafts from
the miners' lamps make an impressive picture,
The miner in the foreground is shown sprag.
ging a mine car to keep it in a stationary
position. The other miner is preparing to
couple a train loaded with coal to the electric
mule which will draw it on its way to the
surface.
LYNN H. BOYER, JR. WILDWOOD, N. J.
"c. T. AMERICAN ART," REG. U, S. PAT. OFF.
