Both are nice County jumping saddles. I rode in them each equally but just sold my narrow, high withered horse, and my other horse has outgrown the Medium and needs to size up. Great saddles that naturally put you in a balanced position and allow the horses to fully use themselves.
One is a County Innovation, 17 seat, Medium tree, calf leather.
Other is a County Stabilizer, 17.5 seat, Narrow tree.