Watch List notes:

Charles I (1625-1649), Briot's Second Milled Issue, Halfcrown, 1638-1639, Tower (under King), King on horseback right, pebbly ground below, rev. crowned oval garnished shield, dividing crowned C-R, lozenge stops, 14.66g, 6h, m.m. anchor and B (Brooker 724; North 2304; Spink 2858), gouges and scratches in antiquity, the edge flattened and upset at 6 o'clock, otherwise darkly cabinet toned, struck details almost very fine, rare.
Provenance,
The "White Rose" Collection of English Coins, formed over several generations between 1914 and 1975,
Clark, by private treaty, 20 June 1929 [with old collector's ticket]
Estimate: £300 - £400