10 oz Lost Cities Silver Bar

Mason Mint's Mythical Cities Series in 10 oz Silver

The 10 oz Lost Cities silver bar is part of Mason Mint's series depicting legendary lost and mythical civilisations. Also known as the "Mythical Cities Series" (the naming varies between dealers), this product line combines detailed artistic engraving with the practical 10 oz silver bar format. The first release features Atlantis, with the Greek god Poseidon holding his trident against a backdrop of temples and ocean life. A second release depicts Asgard, the mythical Norse home of the gods.

Mason Mint is a relatively young US private mint based in Dade City, Florida, that has built its reputation on detailed die work and art-focused bullion. The mint's ISO 9001:2015 certification indicates quality management processes, though it does not carry LBMA accreditation. All products are struck in .999 fine silver in the United States. The 10 oz bar format is unusual for art-focused silver products; most design-driven series stay in the 1 oz round format where the collecting ecosystem is most active.

The series bridges mythology and silver investment for buyers who want more visual interest than a generic bar without paying numismatic premiums. Available in both Brilliant Uncirculated and antique finish variants (the antique treatment gives a weathered appearance that emphasises relief detail), the Lost Cities bars trade at modest premiums above generic bars but below sovereign mint products. Products in this series are listed as "Sold Out" on Mason Mint's website, suggesting limited production runs that are not restocked once depleted.

Lost Cities 10 oz Bar Technical Specifications

The Atlantis 10 oz bar features Poseidon wearing a crown and holding his trident on the reverse, with fish and an Ionic-style temple in the background. Seashells and squids fill the outer rim, with inscriptions reading "POSEIDON" and "OCEAN EMPEROR." The obverse depicts architectural elements of the lost city beneath the waves. The laser-engraved dies allow micro-printing of weight and purity information.

No assay card or serialisation is included as standard. Authentication relies on weight, dimensions, and the distinctive detailed designs. The raised rim on both sides protects the design from handling wear and aids stacking. The antique finish variant undergoes a treatment process that darkens recessed areas to highlight the three-dimensional relief work.

Lost Cities Bar Tax Treatment

As a private-mint silver bar without legal tender status and without LBMA accreditation, the Lost Cities bar receives no sovereign tax advantages and has limited eligibility for precious metals retirement accounts.

• US: Not IRA-eligible. Private-mint bars do not meet IRS criteria for precious metals IRAs (which require government-issued products or bars from COMEX/LBMA-approved refiners). Capital gains taxed at the 28% collectibles rate. State sales tax varies; most states that exempt precious metals include .999 bars regardless of manufacturer.
• UK: Subject to 20% VAT on purchase. Not CGT-exempt. Available from UK dealers such as Atkinsons Bullion. Pre-owned examples may qualify for the margin scheme.
• EU: Standard VAT applies by country. Not eligible for the investment silver exemptions that some countries offer for LBMA-accredited products.
• Canada: GST/HST treatment depends on the interpretation of the exemption. Bars at 99.9%+ purity in bar form should qualify, regardless of manufacturer accreditation.
• Australia: GST-applicable. Whether it qualifies as "investment-grade" silver may be questioned given the non-LBMA status.
• Singapore: Qualification for IPM exemption uncertain without LBMA accreditation from the manufacturer.

Lost Cities vs Other Art and Generic 10 oz Silver Bars

The Lost Cities bar competes in the art bar segment, positioned between generic bullion bars and premium branded products. Buyers in this segment pay a modest premium for detailed designs while still prioritising silver weight over collector speculation.

Against generic 10 oz bars from refiners like Sunshine, Asahi, or SilverTowne, the Lost Cities bar carries a higher premium for its artistic design. The difference buys visual appeal and a limited-production run; the underlying silver content and purity are the same .999 standard. Buyers focused purely on silver weight per dollar choose the generic alternatives.

Compared to LBMA-branded bars from PAMP Suisse or Italpreziosi, the Lost Cities bar lacks LBMA accreditation and IRA eligibility. It compensates with more elaborate artwork, but for buyers who need retirement account qualification or institutional-grade provenance, the LBMA bars are the practical choice regardless of aesthetics.

Against other art-focused private mint products in the 10 oz format, such as the Norse Gods bar (Royal Mint/Germania Mint collaboration), the Lost Cities bar trades at a lower premium but lacks the sovereign mint provenance and tighter mintage control. Mason Mint's strength is delivering detailed artwork at accessible premiums, making it a middle-ground choice for buyers who find generic bars visually dull but balk at the premium commanded by limited-edition collectible bars.