Upgrade your lighting with this washer lampshade featuring a stylish scalloped design and fully lined hardback interior. This empire shade enhances a variety of lamp bases. Polished brass washer fitter has a 1/2 inch drop into top of shade, inner dimension of washer ring measures 0.5 inch. How to Measure Lampshade: First, measure across the top of the shade (10 Inches). Then measure across the bottom or base of the shade (16 Inches). Finally, measure the slant height (11 Inches).