Rupee 2 (5), “B-4”, Type 6.2.3, Signed by H. V. R. Iengar, Prefix S/56 (R IPM # 6.2.3.2), “B-5”, Type 6.2.4, Signed by P. C. Bhattacharya, Prefix C/21 (R IPM # 6.2.4.1), “B-6”, Type 6.2.5, Signed by P. C. Bhattacharya, Prefix E/85 (R IPM # 6.2.5.1), “B-7”, Type 6.2.6, Signed by P. C. Bhattacharya, Prefix D/90 (R IPM # 6.2.6.1), “B-8”, Type 6.2.6, Signed by L. K. Jha, Prefix G/57 (R IPM # 6.2.6.2). 5 Notes.