Watch List notes:

The Abramson Collection of English Coins | Scotland, Charles I (1625-1649), 30-Shillings, 1637-1642, Class IV, rough ground below horse, rev. lozenges over crown, 14.97g, 6h, m.m. thistle [in legend], F below hoof (Spink 5556), a remarkable coin and almost as fresh as first struck, playfully lustrous surfaces muted only by adjustment to peripheries, extremely fine, very rare, especially in this condition.
Provenance
The Dr Tony Abramson Collection of English Coins
~ Leeds City Museum, Winter Exhibition, 1994/95 ~
Purchased November 1987, £260
Estimate: £400 - £600