Corbin Russwin Y | Sargent TR | Yale R8 Specifications 2-3/16" (55.56mm) Rose Specifications: CORBIN RUSSWIN Y Rose (Mortise) SARGENT TR Rose (Mortise) YALE R8 Rose (Mortise) Close You may also like Corbin Russwin E2 | Sargent E2 Corbin Russwin V | Sargent TO | Yale R5 Corbin Russwin E4 | Sargent E4