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This is a well-known dead-end spool type produced by Hemingray. Hemingray made with this with several embossings, including St. Louis Malleable, D-518, and even no embossing at all (although some unembossed versions were also produced by Whitall Tatum).
Primary Embossings:
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HEMINGRAY
NO EMBOSSING
NO NAME
ST.LOUIS MALLEABLE
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Dates Produced:
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c.1930s-1940s |
| Style Numbers: | 518, D-518 |
| Usage:
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Dead End Spool
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| Trade Name:
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Secondary Rack Spool Insulator
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