Watch List notes:

The Abramson Collection of English Coins | Charles II (1660-1685), Halfcrown, 1670 VICESIMO SECUNDO, third bust, rev. E over R in ET, no stop after HIB, crowned shields cruciform, eight strings to harp, edge lettered downwards, 14.96g, 6h (Bull 454; ESC -; Adams 309; Pywell-Phillips -; Spink 3365), linear haymarks across portrait, otherwise toned, good fine / very fine, the die sinker's error clear, very rare.
Provenance
The Dr Tony Abramson Collection of English Coins
Purchased February 1987, £46
Estimate: £150 - £250