Watch List notes:

British India, Edward VII (1901-10), Duncan, Stratton and Co, Bombay, a complete set of bronze trial or proving pieces (4): Rupee, Half-Rupee, Quarter-Rupee, 2-Annas, by Greenwood & Batley Ltd, Leeds, undated (1905), G & B monogram, rev. tiger standing left in jungle (Bullmore, SNC 1979, p.439, #5-7), all in NGC holders, graded MS63BN, MS64RB, MS63BN, MS64RB respectively (4).
The current finest certified grades for series by NGC
Estimate: £600 - £800