The Sand Wedge in my set of irons, 1991-1994 Titleist Tour Model Irons 1-SW, set does not have the tour model stamp and the hosel is smooth (does not have the two rings). Was this the original Sand Wedge issued with the set? If not, what do I have? Per the photo, the sole has the "S" and Titleist stamp and the flange has the Titleist stamp. No other markings.