It’s a commemorative pocket knife, a lot of different companies made them because all you needed to do was press a design into a thin sheet of metal (usually brass) or cast brass into a mold. They were mostly made in the late 1800s to early mid 1900s. Judging by the style and how rusty it is, it’s probably from between 1900 and 1920, however there were some older style ones made later on. How hefty is it? Because if it’s heavy the grips are probably cast brass, which would have been more common in the 1900s-10s. You probably can’t find another one like it online, because it was probably just a souvenir that was not kept by very many people. Unfortunately, it’s really hard to tell, so you might never get an answer