1837 Half Farthing, William IV, very rare 1837 Half Farthing, William IV bare head, reverse, Britannia seated, S.3849. This example is good very fine, discolour on obverse, a key date, very rare. Monarch: William IV Date: 1837 Price: £175 ENQUIRY FORM To enquire about this Coin please use the form below Your Name* Your Email* Subject Your Message Human test: Which is bigger, 2 or 8?