Rupee 1 (4), “A-4”, Type 6.1.3, Signed by K. G. Ambegaonkar, Prefix B/59 (R IPM # 6.1.3.1), Signed by H. M. Patel, “A-5”, Prefix T/61 (R IPM # 6.1.3.2A), “A-6”, Prefix E/67, inset A (R IPM # 6.1.3.2B) & Type 6.1.4, “A-7”, Prefix K/73, inset A (R IPM # 6.1.4.1A). 4 Notes.