This is an in-demand and difficult to find 5 ounce gold Engelhard bar. Produced in 1981, they saw limited mintages and quickly became sought after by gold bar enthusiasts. At the top of the bar is the Engelhard hallmark, this time shown with a maple leaf in the background. In the center is a four-digit purity of 999.9, with the Serial Number positioned below. The back of the bar is intentionally left blank. PURITY: 0.9999. MANUFACTURER: Engelhard Assayers & Refiners.