Around Circa 1889 Levi T. Snow became the Proprietor and his name then appears on the cannon. They made at least 4 different cannon in 10 sizes. Winchester Guns made cannon for L.T. Snow. Ad taken from a 1906 magazine. Saluting cannon, Model 1898 Black, by Winchester, fires 10 gauge blanks .
Most recent additions are one being made of brass and another of bronze.
R.H. Brown - New Haven Connecticut Offered different caliber cannon. Made by the W.S. Hawker Manufacturing Company in Dayton, Ohio. Shoots with 12 gauge blanks . The barrel tilts down, allowing the breach to be opened for inserting the shell. There is also a model made in chrome.