Grinnell automatic sprinkler head
Modified Witter sprinkler head, 1898
Fire sprinkler head
Fire sprinkler head made under licence by Mather & Platt
Fire sprinkler head made by Morris Sprinkler Co. Ltd
Fire sprinkler head
Grinnell fire sprinkler head
Fire sprinkler head made by Mather & Platt
Fire sprinkler head
Fire sprinkler head with metal sphere filled with mercury
Firefighting Sprinkler head
Sectioned Grinnell sprinkler head
1881-1950
Grinnell sprinkler head (used)
Mather and Platt Fire Pump System Sprinkler Head
circa 1938
Witter (UK) fire sprinkler head
Fire sprinkler head collected by Mather & Platt
Manufacturers C-type fire sprinler head
Neracher fire sprinkler head
Harkness fire sprinkler head (similar to Grinnell sprinkler)
Fire sprinkler head
Fire sprinkler head
Fire sprinkler head collected by Mather & Platt
Fire sprinkler head collected by Mather & Platt
Grinnell type C fire sprinkler head
Draper fire sprinkler head
Grinnell 'Duraspeed' soldered fire sprinkler head
Parmlee fire sprinkler head
Fire sprinkler head
Walworth upright fire sprinkler head collected by Mather & Platt
