This "initials only" maverick is probably from Ohio or the general area as 32 scalloped tokens of this style were prevalent there. Was it recovered in that area? Researching will be simplified a bit by the first initial being Z, and the middle initial being I, making for fewer possibilities. However, since there were so many saloon-keepers with last names starting with T, it may be a matter of luck finding who and where. I'd suggest posting pics on tokencatalog.com for more eyes to see it, but be patient waiting for an attribution.
John in the Great 208