I also purchased these at the fair.
Listed as a barbarous obverse on an Aethelred II Last Small Cross penny it has an unusual portrait and a severely illegible legend. The reverse, however, is quite the opposite. Aethelwine on London. What looks to be an imitation due to the obverse doesn't seem right on the reverse, even though there is an absence of an I in AEDELPNE. An odd one.
This is also an odd one. Listed as a Cnut Quatrefoil penny it has a colon between the E and X of REX and, on the reverse, a pellet beneath the reversed S of SPRVNT. But the portrait is most unusual and does not conform to the usual issues. The portrait is our of proportion with a large cheek and an incredibly large neck that seems to take out much of the base of the reverse quatrefoil - like some issues at Sudbury. Whether a variant of Thetford or a Danish imitation is an odd one, too.