Throughout the world of numismatics, there are (arguably) few coins that can match the distinction of the of the Charles I Triple Unite.

Even those new to the genre may well know the name – it is the numismatic equivalent of the Penny Black or Spiderman #1. The crowning jewel of any collection.

It’s allure is undebatable, and yet the basis of this appeal is a contentious issue. The coin was struck for only 3 years towards the end of the reign of Charles I, and yet remains instantly recognisable and eminently collectable today. So just what is its appeal?

Is it perhaps that Charles I’s reign was so short? Or maybe because it was such a memorable and remarkable period in British history? Remember, remember, the Guy Fawkes plot is still commemorated today; the dissolution of Parliament led to the English Civil War.

Or is it more aesthetic than that? There can be little argument that, in all its varieties, it is a stunningly beautiful item – a definitive talking point to sit at the centre of a well-presented collection?

Perhaps it is none of these things, or a combination of all. Or perhaps it is simply that they are rare enough that finding a good fine version takes some considerable effort…

The Charles I gold Triple Unite (lot 1035), 1642 (27.1g), Oxford Mint, for sale in our New York Auction XXXVII on 6th January 2016. Starting Price: $65,000

What do you think? What is the greatest appeal of the Triple Unite? Tell us below….