Boston Area Fire Alarm Insulators in Service (92)
By Joe Maurath, Jr.; posted February 28, 2020
View Original: Click to zoom, then click to magnify (496 x 404) 67KB
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A medium yellow-green CD 133 with a pinkish tinted CD 155 next to it. |
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A medium yellow-green CD 133 with a pinkish tinted CD 155 next to it. |