Pobjoy continue their relationship using the ultra-strong metal Titanium with the release of a new set of three coins under the theme Ocean Zones. Each of the three coins depicts life under the sea in one of three depths. The Daylight coin features creatures that live at or near the surface of the oceans, the Twilight coin those animals that live deeper down, and the Midnight coin the weirder animals that inhabit the very depths of our great bodies of water.
Pobjoy have made all three coins available in sterling silver also, but the titanium versions are the more interesting. Each is unique as the coloured titanium reacts to the strike slightly differently each time apparently, and the mint has decided to use shades of blue for each coin, appropriately enough. The titanium coins weigh only 10g, not surprising given that its density is less than half that of silvers and a quarter that of gold. The silver versions are a standard ounce in weight each (28.28g) and come packaged in a coin box inside a coloured shipper with an enclosed Certificate of Authenticity.
The silver coins are £41.63 pre-tax ($60USD, €54), with the titanium at £37.46. While titanium is worth just a fraction of silver, the incredible strength of the material means the cost to strike is much higher. A single die may be able to strike 500 silver coins, but it wont last a fraction of that for titanium. This goes some way to explaining why it isn’t a popular metal for coins, despite being inert and very tough, ideal properties one would’ve thought. Acupro-nickel version is also available. All are up for sale now.