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When you have 2-ounce silver rounds and high-relief medallions, you want to store them with the same level of protection as any premium collectible coin. The Air-Tite Model X X6D-39mm capsule is specifically designed for oversized and high-relief pieces, featuring a 39 mm foam ring diameter and a 7.2 mm internal depth to accommodate thicker modern 2 oz silver rounds. Manufactured in the USA by Air-Tite, this capsule is made from archival-safe, PVC-free materials that will not react with coins, cause tarnish, or damage surfaces over long-term storage.
Standard Air-Tite Model A and H capsules are generally intended for coins up to approximately 4–5 mm thick. Many modern 2 oz high-relief silver rounds measure between 6 mm and 7 mm in thickness and cannot fit safely inside standard-depth capsules without stressing the lid or compromising the seal.
The X6D-39mm solves this issue by providing a generous 7.2 mm internal depth combined with a precision-cut black Volara foam ring. This allows thicker coins to sit securely inside the capsule while maintaining proper protection and presentation.
| Coin | Diameter | Thickness | Fit |
|---|---|---|---|
| 2 oz Queen's Beast Series (Royal Mint) | 38.61 mm | ~6 mm | Snug ring fit; slight depth gap — suitable for display |
| 2 oz High-Relief Silver Rounds | 39 mm | 6–7 mm | Snug fit — ideal match |
| Oversized Medallions | 38–39 mm | ≤ 7.2 mm | Fits within depth limit |
Queen's Beast Note: The 2 oz Queen's Beast coin measures approximately 38.61 mm in diameter and 6 mm thick. The ring provides a tight fit around the edge, though a small amount of internal clearance remains due to the 7.2 mm depth. For display purposes, this works well; for repeated transportation, an additional outer holder is recommended.
The two biggest threats to silver coins during long-term storage are chemical contamination and physical abrasion. Many inexpensive imported capsules contain PVC (polyvinyl chloride), which can eventually break down and release acidic gases that create cloudy surfaces or permanent green and gray residue on silver.
Even when chemically safe materials are used, an oversized capsule can allow a coin to shift during handling. This movement can cause contact between the coin and the hard acrylic shell, leading to wear on high-relief details. The X6D-39mm addresses both concerns by using PVC-free materials and a precision-fit foam ring that centers the coin while absorbing micro-vibrations.
Capsule Body: Manufactured from virgin acrylic under controlled conditions. The material remains crystal clear, resists yellowing, and provides an airtight seal that helps protect against moisture, oxygen, and airborne contaminants.
Black Volara Foam Ring: Volara is a closed-cell polyethylene foam commonly used in archival and museum storage applications. It is chemically inert and will not react with silver, cause toning, or release harmful gases.
The ring serves three important functions:
The black ring also creates visual contrast, helping coin designs stand out when displayed.
BOLD Precious Metals is both a bullion dealer and a numismatic supply retailer. We use Air-Tite capsules ourselves for many of the coins we sell and have hands-on experience matching the correct capsule to specific coin sizes.
For many 2 oz silver rounds, we recommend the X6D-39mm due to its depth and secure fit. Every Air-Tite capsule we sell is a genuine USA-made product, not a generic substitute. If you're purchasing a qualifying silver round and a matching capsule together, both can be shipped under the same insured order with no additional handling fee.
Orders over $199 qualify for free insured shipping.
BOLD Precious Metals maintains a Trustpilot rating of 4.3 out of 5 stars based on 872 verified customer reviews. Customers frequently mention fast shipping, secure packaging, and accurate product descriptions for both bullion products and coin-storage supplies.
When you have 2-ounce silver rounds and high-relief medallions, you want to store them with the same level of protection as any premium collectible coin. The Air-Tite Model X X6D-39mm capsule is specifically designed for oversized and high-relief pieces, featuring a 39 mm foam ring diameter and a 7.2 mm internal depth to accommodate thicker modern 2 oz silver rounds. Manufactured in the USA by Air-Tite, this capsule is made from archival-safe, PVC-free materials that will not react with coins, cause tarnish, or damage surfaces over long-term storage.
Standard Air-Tite Model A and H capsules are generally intended for coins up to approximately 4–5 mm thick. Many modern 2 oz high-relief silver rounds measure between 6 mm and 7 mm in thickness and cannot fit safely inside standard-depth capsules without stressing the lid or compromising the seal.
The X6D-39mm solves this issue by providing a generous 7.2 mm internal depth combined with a precision-cut black Volara foam ring. This allows thicker coins to sit securely inside the capsule while maintaining proper protection and presentation.
| Coin | Diameter | Thickness | Fit |
|---|---|---|---|
| 2 oz Queen's Beast Series (Royal Mint) | 38.61 mm | ~6 mm | Snug ring fit; slight depth gap — suitable for display |
| 2 oz High-Relief Silver Rounds | 39 mm | 6–7 mm | Snug fit — ideal match |
| Oversized Medallions | 38–39 mm | ≤ 7.2 mm | Fits within depth limit |
Queen's Beast Note: The 2 oz Queen's Beast coin measures approximately 38.61 mm in diameter and 6 mm thick. The ring provides a tight fit around the edge, though a small amount of internal clearance remains due to the 7.2 mm depth. For display purposes, this works well; for repeated transportation, an additional outer holder is recommended.
The two biggest threats to silver coins during long-term storage are chemical contamination and physical abrasion. Many inexpensive imported capsules contain PVC (polyvinyl chloride), which can eventually break down and release acidic gases that create cloudy surfaces or permanent green and gray residue on silver.
Even when chemically safe materials are used, an oversized capsule can allow a coin to shift during handling. This movement can cause contact between the coin and the hard acrylic shell, leading to wear on high-relief details. The X6D-39mm addresses both concerns by using PVC-free materials and a precision-fit foam ring that centers the coin while absorbing micro-vibrations.
Capsule Body: Manufactured from virgin acrylic under controlled conditions. The material remains crystal clear, resists yellowing, and provides an airtight seal that helps protect against moisture, oxygen, and airborne contaminants.
Black Volara Foam Ring: Volara is a closed-cell polyethylene foam commonly used in archival and museum storage applications. It is chemically inert and will not react with silver, cause toning, or release harmful gases.
The ring serves three important functions:
The black ring also creates visual contrast, helping coin designs stand out when displayed.
BOLD Precious Metals is both a bullion dealer and a numismatic supply retailer. We use Air-Tite capsules ourselves for many of the coins we sell and have hands-on experience matching the correct capsule to specific coin sizes.
For many 2 oz silver rounds, we recommend the X6D-39mm due to its depth and secure fit. Every Air-Tite capsule we sell is a genuine USA-made product, not a generic substitute. If you're purchasing a qualifying silver round and a matching capsule together, both can be shipped under the same insured order with no additional handling fee.
Orders over $199 qualify for free insured shipping.
BOLD Precious Metals maintains a Trustpilot rating of 4.3 out of 5 stars based on 872 verified customer reviews. Customers frequently mention fast shipping, secure packaging, and accurate product descriptions for both bullion products and coin-storage supplies.
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