Ecgberht (c. 785), Penny, Canterbury, Eoba, egcberht around rx in centre, rev. four pellets-in-annulets around central annulet, e-o-b-a retrograde in angles, 1.10g/6h (Chick 86d, this coin; Blunt 3; N 201; S 874).  Extremely rare.  A small fragment has been lost since the image depicted in Chick was taken.  Images courtesy of DNW.