Haha, I think its from the early 1900's. Didn't have any other documentation about it.
Edit; Guess its the late 1800's. Found this on the NFPA website "To further exemplify the evolution of sprinkler technology, some early archival information refers to a litany of sprinkler designs, such as the Mackey (1887), the early Grinnells, the Kane (1888), the Neracher (1888), the New York (1889), the Harkness (1890), the Buell (1892), and the National (pre-1900)"
