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Figure 161.-Bins made of clay tile in machine shop for storing supplies and fittings.

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USE OF SIGNBOARDS.

SAFE PRACTICE.

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Figure 164.-Accident bulletin board placed at top of shaft in plain view of men going on shift. When an accident occurs in mine, it is described on signboard. Description remains there until another accident happens.

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Figure 165.-Bulletin board with instruction signs, safety posters, and suggestion box, next to lamp house. Miners see it when they get their lamps. Notices of safety, first-aid, and mine-rescue meetings are posted here.

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Figure 166.-Bright sign in shaft bottom. The safety motto is changed weekly. Miners see it when they step off cage.

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Figure 167.-Direction boards placed at junction point in mine to guide miners when going to their working places and when returning to shaft at close of shift.

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