Watch List notes:

Dublin, another but in brass, 28mm/9.03gm (DH 321), almost Extremely Fine, exceptionally rare in this
off‑metal.

Ex. Lincoln Col. sold via Glendinings 12th. Feb. 1936; Ex. F S Cokayne Col. (acquired Baldwin c.1946), his ticket, purchased by private sale from Lincoln before sale on 28 May.1934 for 6/6d.