Watch List notes:

COINS, WEST INDIES, BRITISH GUIANA William IV (1830-1837), Silver ½-Guilder, 1836 (Pr 19; KM 24). In NGC holder graded MS65, superb tone though rather dark, an amazing grade for this one year type.
This will be one of the few auctions where you can put together a true choice British Guiana type set.

Estimate: £400-600