I don't remember where I got this brass token from but I finally searched on Numista.com and found out it's from the country of Turkey I want to share this image with you from the Numista website -
Interesting. Was trying to figure out "when, why" these were used. Found this link... http://www.crwflags.com/fotw/flags/tr~hftmo.html
Note that your token is a little different from the one shown at the Numista page. That one says ŞEHIR HATLARI İŞLETMESİ, something like Administration of the City Lines. A company by that name is still (or rather again) around, see here: http://en.sehirhatlari.istanbul/en/kurumsal/history-6492.html Now the token that you have says DENİZCİLİK BANKASI. That (public) maritime bank https://tr.wikipedia.org/wiki/Denizcilik_Bankası was apparently founded in 1951 and dissolved/merged in 1983 ... Christian