Less successful variation ofB-20100elements. Introduced in 1894 Russell & Erwin  catalog page 4 with bronzed iron plate and on page 154 with pictured rose, in  114, 1896 Supplement No. 2 page 2, 1897 catalog page114, 1899 catalog page 158 and 1904 export catalog page 48. This knobB-20300andM-15900were also used with the Embossed plate. Click on each photo below to view additional images and information.