Gibraltar, Victoria, Proof Quart, 1861, edge plain, 5.40g/12h (Prid. 8; KM. 2). Two stains on obverse, otherwise virtually as struck, extremely rare £500-£700

F. Pridmore Collection, Part I, Glendining Auction, 21-2 September 1981, lot 546; A.L.T. McCammon Collection, Baldwin Auction 20, 11 October 1999, lot 280; ‘Arielle’ Collection, Part II, Baldwin Auction 86, 6 May 2014, lot 157; Sovereign Rarities Auction 2, 24 September 2019, lot 328