Watch List notes:

(x) NGC AU50 | Commonwealth (1649-1660), Crown, 1652 over 1, Tower, (m.m.) • THE • COMMONWEALTH • OF • ENGLAND •, Ns over inverted Ns, English shield within palm and laurel wreath, rev. • 1652 • GOD • WITH • VS, conjoined shields of England and Ireland, 29.92g, 6h, m.m sun (Bull 5 [R3]; ESC 5; North 2721; Spink 3214), some faint metal stressing by harp, otherwise with rich even tone on uniformly struck up surfaces, a fine cabinet piece, a really good very fine, in NGC holder, graded AU50 (Cert. #2813500-002).
Provenance
Classical Numismatic Review XLII.2, Spring 2017 - 'near EF, toned, rare date' - $7,500
C J Boismason, Part I, DNW 138, 12 December 2016, lot 2025 - £3,800
L Bennett (Monmouth), by private treaty [HC875-581], 14 January 2007 - £3,200

Estimate: £3000 - £4000