Like many other mints, the Royal Mint of Spain issues - apart from the regular circulation coinage it strikes - a variety of commemorative coins for collectors. Since 2021, it also issues bullion coins - sold at prices close to the intrinsic value of the precious metal they are made from. The first of these was in the internationally popular one troy ounce of gold format, followed in 2022 by the small tenth-ounce (1/10 oz) of gold.
The tenth-ounce is denominated as 15 Euro cents - just a token face value showing the legal tender status of the coin, which is worth considerably more. | 
