Schoolhouse style shades can be found from a number of manufacturers. Other than looks, how can you tell them apart? If authenticity matters to you, looks for reproduction shades which are true to their heritage.All our school house shades are made from thick opal glass with fitter lips cut and ground in traditional fitter sizes. Because of this, our shades look right at home with our Period Basics collection of classic lighting styles, and right alongside antique school house shades and fixtures. No odd sizes, no funky shapes. Just the real deal. See more shades with a 4" fitter. Specifications Item # 301OP-10 Fitter 4" Width 10" Height 6.5" Finish Shiny opal Price As Shown Base Total $26.00 Grand Total $26.00