Capsules QUADRUM - internal Ø 30 mm (pack of 10)

The Quadrum square coin capsule is designed for long-term storage and protection of coins. It features a standardized external format of 50 × 50 × 6.25 mm, identical across the entire Quadrum series. This unified size ensures full compatibility with presentation cases, storage boxes, trays and drawer systems developed for Quadrum capsules.

The capsule provides an internal coin depth of 3.3 mm, suitable for standard circulating and commemorative coins within this thickness range.

The construction consists of two precisely fitting parts with a secure yet repeatedly openable snap closure. The locking mechanism is engineered to prevent accidental opening during handling while allowing safe coin removal without the use of tools.

The capsule is manufactured from transparent, scratch-resistant acrylic plastic intended for archival storage of collectible materials. The material is acid-free and PVC-free, ensuring safe long-term preservation.

Each capsule includes a black precision-cut foam insert matching the specified coin diameter. The insert centers the coin securely and creates a high-contrast background that enhances the coin’s rim and contour during presentation.

Technical Specifications

Type: Quadrum square coin capsule
External dimensions: 50 × 50 × 6.25 mm
Internal coin depth: 3.3 mm
Material: transparent acrylic, PVC-free
Insert: black foam insert (precision cut)