Alliance 1,953 1,953 Gramme (No. 1). 6,663 4,016 Gramme (No. 1). 6,663 4,016 Siemens (Large) 14,818 8,932 Siemens (Small, No. 2) 6,864 4,138 Two Holmes's coupled 2,811 2,811 Two Gramme's (Nos. 1 and 2) 11,396 6,869 Two Siemens' (Nos.