Watch List notes:

ANCIENT COINS, ANCIENT BRITISH, Celtic Silver and Base Metal, Corieltauvi, uniface Silver Unit, 0.80g, late 1st Century BC, blank obverse, rev horse right, four pellets within rectangle above (ABC 1815; VA -; BMC 3233; S 398); another, 0.78g, late 1st Century BC, blank obverse, rev horse left, 'kite'-shaped ornament above (ABC 1818 (plate coin); VA -; BMC -; S -). First on a small flan, possibly clipped, nearly very fine, scarce, second chipped, about very fine, very rare. (2)
first ex DNW auction, September 2008, found Horncastle, February 2002, CCI 04. 2441
second ex DNW auction, March 2009, found Caistor, November 2001, CCI 01. 1690

Estimate: £180-220