It is possible to pull the pen apart. There is, unfortunately, no identifying mark inside and after disassemblng it, twisting my pen no longer results in the ball point emerging. (Not working after being taken apart happens alot to me).

If anyone would like a nonworking Four Seasons Pen, send me a PM. I can toss in working pens from the Mandarin Oriental NY (Very similar to Four Seansons) and the Phoenician.