Watch List notes:

STUART. Charles I. 1625-1649. AR Shilling (31mm, 5.84 g, 2h). Group F, type 4.4. Tower (London) mint under the King; im: Δ. Struck 1639-1640. Crowned bust left; XII (mark of value) to right / Coat-of-arms over cross fourchée. Sharp G1/2; Brooker 545; North 2231; SCBC 2799. VF, iridescent toning at edge, a few light scratches and slight double strike on obverse.

From the B.H. Webb Collectuion.