![ANTIQUE VINTAGE GRINNELL 1916 155 "A" FRAME BRASS FIRE SPRINKLER HEAD | eBay](https://i.ebayimg.com/images/g/cKIAAOSwmVdjmk1h/s-l1200.jpg "ANTIQUE VINTAGE GRINNELL 1916 155 "A" FRAME BRASS FIRE SPRINKLER HEAD | eBay")
ANTIQUE VINTAGE GRINNELL 1916 155 "A" FRAME BRASS FIRE SPRINKLER HEAD | eBay
Collecting Fire Sprinkler Heads - 325° Grinnell Quartzoid upright with manual pull tab. Special purpose head combining a standard automatic sprinkler with a mechanical release tab which can be remotely operated by
Grinnell | Fire Alarm Community Wiki | Fandom
Grinnell quartzoid bulb sprinkler, 1927 | Science Museum Group Collection
Grinnell automatic sprinkler head - APH Museum
original and intact vintage american industrial grinnell company "automatic sprinkler" exterior building facade alarm bell with distressed red paint finish
Fire Sprinkler Heads — 1933 Grinnell picker trunk model. Used in duct...
File:Grinnell automatic sprinkler advertisement.png - Wikimedia Commons
Tyco SimplexGrinnell on X: "#TBT to these four vintage Grinnell Duraspeed brass fire sprinkler heads. Did you know we pioneered the first automatic sprinkler in 1881? https://t.co/Fqubi1mqep" / X
Inevitability of the Fire Sprinkler
Tyco SimplexGrinnell on Twitter: "#TBT to this antique Grinnell fire sprinkler! DYK that Frederick Grinnell patented the first 'sensitive' automatic sprinkler in 1881? https://t.co/iywNXc7sLA" / Twitter
NFSA on Twitter: "#FastestwaterFriday Fact: 1881; Frederick Grinnell patents his #firesprinkler system. The 'Grinnell Sprinkler' later went on to be considered the first practical automated sprinkler system. https://t.co/2q4pBE5R3B" / Twitter
![Grinnell - Vintage 1947 - B47 - 165 - Sprinkler Head 1/2" NPT Brass - Lot of 10 | eBay](https://i.ebayimg.com/images/g/hbQAAOSw691jfjT4/s-l1200.webp "Grinnell - Vintage 1947 - B47 - 165 - Sprinkler Head 1/2" NPT Brass - Lot of 10 | eBay")
Grinnell - Vintage 1947 - B47 - 165 - Sprinkler Head 1/2" NPT Brass - Lot of 10 | eBay
A brief history of automatic fire sprinkler systems - Asia Pacific Fire
1930 Grinnell Fire Sprinkler | Fire sprinkler system, Fire sprinkler, Sprinkler
1926 Grinnell B | Fire sprinkler, Fire systems, Fire sprinklers
![ANTIQUE VINTAGE GRINNELL 1914 155 "A" FRAME BRASS FIRE SPRINKLER HEAD | eBay](https://i.ebayimg.com/images/g/G~EAAOSwFTVdSE8S/s-l1200.webp "ANTIQUE VINTAGE GRINNELL 1914 155 "A" FRAME BRASS FIRE SPRINKLER HEAD | eBay")
ANTIQUE VINTAGE GRINNELL 1914 155 "A" FRAME BRASS FIRE SPRINKLER HEAD | eBay
Grinnell Fire Alarm Photograph by David Lee Thompson - Pixels
Antiques, Art, Vintage
Grinnell fire sprinkler head | Science Museum Group Collection
Amazon.com : Grinnell 458A Upright Sprinkler Head 17/32" : Tools & Home Improvement
1966 Grinnell Quartzoid Upright Fire Sprinkler Head | eBay
![Grinnell - Vintage 1947 - B47 - Sprinkler Head - 1/2" NPT Brass | eBay](https://i.ebayimg.com/images/g/ODkAAOSwDANhshvZ/s-l1600.jpg "Grinnell - Vintage 1947 - B47 - Sprinkler Head - 1/2" NPT Brass | eBay")