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mercury vapor

glowneontubeglassphosphorwhite
Argon & Mercury
Argon & Mercury
Mercury-Phosphor Glow
Argon Helvetica
Argon Helvetica
A blue mercury-vapor tube bent into a sweeping curve, phosphor coating visible i
Argon & Mercury
Argon & Mercury
Color Range Comparison
Threshold Ames
Threshold Ames
Underground parking garage level B3, concrete columns every thirty feet with ref
Mercury-Phosphor Glow
Color Range Comparison
A blue mercury-vapor tube bent into a sweeping curve, phosphor coating visible i
Underground parking garage level B3, concrete columns every thirty feet with ref

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