Watch List notes:

(x) Archbishops of Canterbury, Aethelheard (793-805), with Coenwulf as overlord, Penny, 1.28g, 6h, + coenvvlf rex, around solid inner circle containing uncial m, rev. + aedilheard ar, around solid inner circle containing ep (Naismith C22.1j this coin; N.232; S.886A), a neat round coin of good metal, about extremely fine, very rare.
Provenance:
Spink Numismatic Circular, December 1991, no. 7953
From Derick Chick
Found near Dunmow, Essex, 1988, EMC.2001.0976
Estimate: £4,000.00 - £5,000.00