Available with limited mintage figures, gilded silver bullion coins contain a thin layer of 24-karat gold applied to the primary design on the surface of coins. The layer of 24-karat gold is not enough to alter the overall weight of the coin and does not add significant value to the coin based upon its metal content. Buy Low Silver Prices on Silver Bullion, Silver Coins & Silver Bars at BGASC. Low Prices, In Stock, Fast Shipping. Call Us (888) 992-4272 or Buy Online at BGASC.com. Low Silver Prices on Silver Bullion, Silver Coins, and Silver Bars. Shop for Silver Bullion by type, weight, or design. We offer a full range of Silver Bullion, Proof and Uncirculated coins, as well as NGC or PCGS Certified Junk Silver (Older Coins That Have Silver in Them) Junk silver (aka pre-1965 coins) is an informal term to describe a circulated 90% silver dime, quarter, or half dollar that has the bullion value of the silver it contains. This type of circulated coin has no collectible or numismatic value.