The "1910" is actually a patent date for part of the lockwork in this rifle; your #43 was made sometime between 1924 and 1932.
The C.J. Hamilton Rifle Co. was formed in 1898 in Plymouth, Michigan, and specialized in making all sorts of "boy's rifles" (Hamilton was also an early partner in the development of the Daisy air rifle). During WW2, the company made tank-tread parts, but decided it couldn't make a go of it after the war, so the company was sold to a fellow by the name of "Hoban", who made his own version of these rifles for a while.
