Seat is stamped 18″ but measures closer to 17.5″ flaps measure 14″ bar to bottom and 14.5″ across (forward flaps), the front gullet measures 5 1/4″-wide tree (stamped MW for medium wide but will fit like a wide).
The Talisman model is the jumping model from the popular Trilogy brand. These are VERY hard to find used. They have both gusseted panels and the saddles are wool flocked so the flocking can be adjusted to best fit your horse without having to order all brand new panels. The leather on the saddle is the Elite leather and it provides a nice “grippy” ride. The blocks on the front and back are velcro so you can adjust them to where they work best or remove them. It comes with one set so you can either use them on the front or back and if you want and additional set they can be ordered from Trilogy. Very nice $5000+ saddle at a reasonable price point.