Physical Dimensions: .841 a: H. 10 11/16 in. (27.1 cm), with b: H. 11 3/16 in. (28.4 cm.); 842 a: H. 10 9/16 in. (26.8 cm.), with b: H. 11 1/8 in. (28.3 cm.); .843 a: 10 3/4 in. (27.3 cm.), with b, H. 11 1/4 in. (28.6 cm.); .844 a: 10 13/16 in. (27.5 cm.), with b: H. 11 1/8 in. (28.3 cm.)