Vintage NOS "High Voltage" Mining Operation Warning SSP Sign brewing co Antique oak and glass display

Antique oak and glass display case

The green upper band appears to show overspray from an old repaint

An evocative artifact of small-town Americana with strong regional appeal

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Vintage NOS "High Voltage" Mining Operation Warning SSP Sign brewing co Antique oak and glass displayPorcelain coated steel industrial safety sign reading "CRANES HIGH VOLTAGE HAZARD CHECK BOOM" with a bold upward directional arrow, executed in stark black and red on a white field for maximum visibility. Designed for use in active mining operations, the sign would have been positioned near crane pathways to warn operators of overhead electrical hazards and the need to check boom clearance. The typography is clean and highly legible, with strong