Light Bulbs Appraisal

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Set of Three Vintage Cobalt Blue Candelabra Light Bulbs

This is a set of three vintage incandescent light bulbs featuring a distinctive deep cobalt blue glass envelope. The bulbs are designed in a classic 'pear' or A-series miniature shape, likely intended for decorative candelabra-style fixtures or holiday lighting. Each bulb features a threaded brass Edison base, which shows a significant amount of aged patina, darkening, and minor surface oxidation consistent with late 1930s to 1950s manufacturing. The glass is richly pigmented, suggesting it is colored glass rather than a surface or dip-coating commonly found on cheaper modern reproductions. While no specific maker's mark is clearly visible on the metal bases in the image, the construction uses a traditional crimped metal-to-glass seal and a dark insulator at the bottom contact point. The condition shows light surface scratching on the glass and some wear on the threads of the brass bases. There are faint white markings or reflections on the exterior surface of the glass, possibly indicating previous inventory numbering or simple light reflections. These bulbs represent mid-20th-century industrial design as utility items shifted toward decorative aesthetics.

Estimated Value

$15 - $35

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