I play guitar and have been playing with a couple 18 piece jazz bands. When when a local band leader asked me if I wanted to play banjo in a new Dixieland combo he was putting together I said yeah and rushed out and bought a 19 fret banjo, figured out major, minor and dominant chords and started my career as a banjoist.
A few years later look at this beautiful old Ome I bought from Sam Ash.
Nice find, even carries an Oettinger tailpiece! Although a five-string player, I am a decades-long fan of Ome banjos, owning several. The Ome web site should allow you to find the age of your banjo via the serial number and their "history" section. Enjoy your banjo career!