The blue box is shrinking. Tiffany & Co. will test a new concept in Glendale this fall with its first smaller-scale store, the high-end jeweler said Thursday. The 2,600-square-foot space — Tiffany’s 46 existing stores average 7,100 square feet — will open in October in the Americana at Brand, a retail and residential center under […] ↓ Read the rest of this entry…