Government of India, 1 rupee, 1940, red serial number E/3 305639, (Pick 25b, Razack-Jhunjhunwalla 4.1.1D, TBB B151b), in PCGS holder, rust, small pinholes, 45 Extremely Fine. The 'E' prefix is extremely rare, with only a handful known.
Estimate: £2500 - £3000