British hammered, Scotland, James IV, gold half unicorn, type I, reads SCOTOR, extremely rare

British hammered, Scotland, James IV (1483-1513), gold half unicorn, type I, reads SCOTOR. 1.91 g. 

about VF, somewhat buffed. Extremely rare variety, absent from Burns and most institutional collections. 

Spink 5321 (for general type); Burns - ; SCBI 35 -; Eric P. Newman collection, Heritage Auctions (Dallas, TX), 14 January 2014, lot 30245 (these dies).