Patent applied for in September of 1905? Who was playing tenor banjo in 1905? I doubted it, so I checked around. Its patent was granted in 1917, and several other Eze-Tunes I found had different numbers stamped on them..
These tailpieces were intended for the majority of banjos made back then that had simple 1:1 friction pegs like these:
From San Francisco, even!
On the left, a home-made tailpiece of aluminum on an Iucci tenor mandole. The working parts were clearly pirated from an Eze-Tune, but are actually rather pointless because two strings are attached to each hook.
Even though Michael Iucci made a lot of tenor banjos, I really doubt he had anything to do with this tailpiece or, for that matter, with the bridge on this instrument. He was always much more a class act.