This rare vintage 10 oz Engelhard silver bar is a unique addition to any precious metals collection. Featuring the W serial number and unusual crazy lines and color design, this bar is a must-have for collectors. The bar comes in its original plastic, adding to its authenticity and value. Made of 10 oz of pure silver, this bar is a great investment choice for those looking to diversify their portfolio. The Engelhard brand is known for producing high-quality silver bullion, making this bar a reliable and valuable choice for any investor. Add this rare piece to your collection today.