A dusty corner of the historic Elks Tower containing a pool hidden for decades will soon get a second life when a Euro-style cafe, bar and chocolatier open next year. The Ayers family has begun renovating a bi-level corner of the 1926 building designed by architect Leonard J. Starks to incorporate a pool where club members swam for 50 years. The pool hasn't been used since about the early 1980s. Building owner Steve Ayers, his daughter Katharine (Ayers) Gelber and her husband, Michael Gelber, are partnering to open Rail Bridge Wine and Spirits in the front corner of the building at 921 11th St. The other corner is anchored by McCormick & Schmick's Seafood Restaurant. The bar, small cafe