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The Dwarf Signal No. 148 was produced on a BUFF colored body with a BLACK light cover that concealed one RED and one GREEN pin type lamps. Available from 1957 through 1960, this signal came with its own switch, No. 148C, that would change the aspect of the signal manually, or it could be used with a No. 153C contact placed beneath the track.

It is difficult to find with the manual control switch.

Dimensions: 2-3/8 inches square 1-3/8 inches high.
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