Capsules and Cases

Coin capsules and numismatic cases are essential elements for the conservation and protection of collections. These rigid or semi-rigid containers isolate each coin from its external environment, protecting it from the risks of oxidation, humidity, scratches and direct handling.

Numismatic capsules generally consist of two transparent shells made of acrylic plastic or polystyrene that snap together, holding the coin in a central position without contact with the walls. They are available in many standardised diameters, expressed in millimetres, in order to precisely fit the dimensions of coins from all eras and origins: ancient coins, modern circulation coins, collectible coins or bullion coins in precious metals.

Coin cases differ from capsules in their often more flexible or elaborate design, sometimes incorporating a flocked surface, a coloured background or a particular closure system. They are suitable both for the individual presentation of a coin and for its long-term storage.

Among the most sought-after formats are capsules adapted for gold coins and commonly collected silver coins, such as capsules for 1-ounce coins, formats compatible with the common series of the Monnaie de Paris, the Royal Mint, the United States Mint or the Münze Österreich.

The choice of a capsule or case is based on several criteria: the inner diameter corresponding exactly to that of the coin, the quality of the materials used (absence of PVC, chemical neutrality), the transparency allowing optimal reading and observation of both faces, as well as the solidity of the snap-fit system guaranteeing a hermetic and durable closure.

Some manufacturers offer capsules with coloured rims ? black, white or red ? allowing visual contrast with the coin and facilitating identification within a collection. Other product lines include capsules with presentation cardboard or capsules mounted on a stand, intended for the individual display of a coin.

Compatibility with numismatic storage systems is also an important criterion: many capsules are designed to fit into multi-cell trays, specialised binders or storage boxes, thus ensuring a coherent and modular organisation of the entire collection.