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Vintage 1920 Brass Fire Sprinkler Ashtray with advertising from Woodsman, Frick, & Innis Business Insurance
A history of fire sprinklers
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2 Fire sprinklers antique brass upright C.S.B. 1951 165 degree mdl A #33 | eBay
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1920-1928 4 Antique Vintage Fire Sprinkler Head Collection | eBay
My Fire Sprinkler Collection | Collecting Fire Sprinkler Heads | Page 3
Home Fire Sprinkler Systems - All You Need to Know - Bob Vila
