Watch List notes:

SCOTLAND. Charles I. 1625-1649. AR Twenty Pence (15.5mm, 0.83 g, 6h). Third coinage, Briot's issue, type I. Edinburgh mint; im: B. Struck 1637-1642. Crowned, armored, and draped bust left; XX (mark of value) behind / Crowned thistle. SCBI 35 (Ashmolean & Hunterian) 1451; SCBC 5582A. Near VF, toned. Rare variety with B below thistle.

From the Dr. William E. Triest Collection. Ex Classical Numismatic Group Electronic Auction 103 (8 December 2004), lot 254.