Tristan da Cunha, 'Longest Reigning Monarch Portrait Collection' a set of 4 x silver proof crowns depicting different portraits of the Queen's reign; the reverses of the four crowns depict the Queen's portraits similar to those used in Britain & the Commonwealth by Gillick (1957), Machin (1974), Maklouf (1985) & Rank-Broadley (1998); each crown 38.6mm, 12g .925 silver & each with a total mintage of 4999; with certificate of authenticity; included with the set is a Tristan da Cunha silver proof £5 2015 commemorating the 70th anniversary of D-Day 1945-2015, rev. Union Flag & two banners with letters V & E, London skyline in background, 38.6mm, 25.5g, .925 silver, no certificate; individually encapsulated in London Mint office case of issue, FDC