Sunshine Minting has operated out of Coeur d’Alene, Idaho since 1979 and supplies silver blanks to the U.S. Mint among other major clients — a credential that speaks to their production standards. The 5 oz bar is one of their most practical formats for stackers: enough weight to accumulate meaningfully without the premium typically attached to fractional pieces, and bearing Sunshine’s proprietary Mint Mark SI security feature that has become one of the more recognized anti-counterfeiting tools in the private mint industry.
Key Features:
- Purity & Weight: 5 troy ounces of .999 fine silver
- Metal: Silver
- Obverse Design: Sunshine Minting circular logo at the top — a soaring eagle in front of radiating sunburst rays, inscribed “SUNSHINE MINTING” around the border; “.999 FINE SILVER” and “5 OUNCES” struck in bold below; a blank serial number panel at the base
- Reverse Design: Diagonal stripe pattern of repeating sunburst motifs across the entire face; a central circular Mint Mark SI verification zone inscribed “MINT MARK SI”
- Security Feature: Mint Mark SI — a latent image technology that reveals a hidden “SI” mark when viewed under a special decoder lens, verifying authenticity
The obverse is split between Sunshine’s signature logo and clean, legible hallmarking. The circular emblem at the top frames a bald eagle in upward flight, wings spread against a burst of radiating rays — an image that has become immediately identifiable to anyone who handles Sunshine bars regularly. The field below is mirror-polished, carrying “.999 FINE SILVER” and “5 OUNCES” in bold block lettering. A blank rectangular panel runs along the base — a serial number field that may be populated depending on the specific bar received.
The reverse takes a different visual approach entirely. Diagonal bands of repeating sunburst impressions cover the full face in a consistent geometric pattern, giving the bar a textured, almost fabric-like appearance. At the center sits a circular zone dedicated to the Mint Mark SI feature — a latent image security element invisible to the naked eye but revealed as a clear “SI” marking when viewed through Sunshine’s proprietary decoder lens. This technology, developed and patented by Sunshine Minting, allows instant field verification and has been adopted across their bar and round production as a standard authentication tool.
The bar features sharp squared edges, a reeded perimeter, and the high-polish fields on the obverse that are characteristic of Sunshine’s struck bar production. Each bar arrives new.
Five ounces of .999 fine silver from a mint that supplies the U.S. government, with built-in authentication technology — this bar covers every practical base for the serious stacker. Add it to your cart today.