Well, I web searched "TSRTDCTAV", and found this:
which mentions a "medal with various triangles, single and interlaced, a cypher of angular characters and having- also the letters vtsrtdcta" as being a signet of a "Select Templar one of the degrees in a Temperance secret society, and was struck in New York".
From the description, it sounds a lot like that yours look like. Searching for VTSRTDCTA gives a few more hits. A numismatist would probably be able to tell you more, regardless.