Grinnell automatic sprinkler head
Modified Witter sprinkler head, 1898
Early Dowson and Taylor sprinkler head, 1886
Firefighting Sprinkler head
Grinnell sprinkler head (used)
Fire sprinkler head made under licence by Mather & Platt
Fire sprinkler head
Grinnell fire sprinkler head
Fire sprinkler head
Fire sprinkler head
Fire sprinkler head made by Mather & Platt
Fire sprinkler head made by Morris Sprinkler Co. Ltd
Fire sprinkler head with metal sphere filled with mercury
Sectioned Grinnell sprinkler head
1881-1950
Mather and Platt Fire Pump System Sprinkler Head
circa 1938
Fire sprinkler head collected by Mather & Platt
Harkness fire sprinkler head (similar to Grinnell sprinkler)
Grinnell 'Duraspeed' soldered fire sprinkler head
Walworth upright fire sprinkler head collected by Mather & Platt
Neracher fire sprinkler head
Fire sprinkler head collected by Mather & Platt
Fire sprinkler head
Fire sprinkler head
Fire sprinkler head collected by Mather & Platt
Parmlee fire sprinkler head
Manufacturers C-type fire sprinler head
Grinnell type C fire sprinkler head
Witter (UK) fire sprinkler head
Fire sprinkler head
