Corbin Russwin U | Sargent CO | Yale R4 Specifications 2-3/4" (69.85mm) Rose Specifications: CORBIN RUSSWIN U Rose (Mortise, Tubular) SARGENT CO Rose (Mortise, Tubular) YALE R4 Rose (Mortise, Tubular) Close You may also like Corbin Russwin E2 | Sargent E2 Corbin Russwin E4 | Sargent E4 Corbin Russwin V | Sargent TO | Yale R5