Capsules

The capsules for euro coins are rigid containers designed for the protection and preservation of coins from the eurozone. Made primarily from transparent plastic material, they allow both sides of the coin to be viewed without direct handling, thus limiting the risks of scratches, oxidation and fingerprints.

These capsules come in standardised diameters for euro coins, from 16.25 mm for the 1 cent coin up to 25.75 mm for the 2 euro coin, including intermediate sizes corresponding to the 2 cent, 5 cent, 10 cent, 20 cent, 50 cent and 1 euro denominations. Specific sizes also exist for 2 euro commemorative coins as well as for larger format collector coins, notably silver or gold issues of 5, 10, 20 and 50 euros.

The closure system varies depending on the manufacturer and range: some capsules consist of two snap-together half-shells, while others incorporate an O-ring gasket providing better protection against moisture and atmospheric agents. Specialist brands such as Leuchtturm, Numis, Safe and Artline offer capsules with dimensions precisely adjusted to the striking tolerances of Eurosystem mints.

Choosing the right capsule depends on the exact diameter of the coin, expressed in millimetres, as well as the inner rim thickness, which must not obscure the edge reliefs or exert excessive pressure on the blank. A capsule that is too large allows the coin to move, exposing the reliefs to internal impacts; a capsule that is too tight may cause marks on the field or edge of the coin.

These accessories are aimed at collectors of everyday, commemorative and prestige euro coins, whether preserving specimens in Fleur de Coin (FDC), Belle Épreuve (BE) or Brilliant Uncirculated (BU) quality, whose numismatic value is directly linked to the condition of the surface and the brilliance of the metal.