Welcome to the forum , Judder .
Perhaps you could fill us in on a bit of he history of your item ?
When I check out metal items from the Meiji period (or ones I suspect are from the time-frame) , I inspect every square inch of them with a 30x to 10x lens .
Doing so has lead me to find very small or barely distinguishable makers' sigs , as well as other features .
In items such as yours , with added elements (teeth) , sometimes the type of fitting & adhesive can give clues as to age of the overall item (not true in the case of repairs , though) .
As you may know , during the Meiji period there were many metalworkers (& Samurai) who'd been put out of work in the 'weapons' trade , due to government edicts ; some of these folks continued to make metal items of non-weapon purpose , since they had to find a way to adapt their skills .
Many items from this period were left unmarked/unsigned , for a variety of reasons .
Cool little bronze item , Judder .