The troy ounce is part of the troy weights system, which largely derives from the Roman monetary system. Today, the troy system is primarily used to measure the mass of precious metals.
“An ounce of gold” is one of the archetypes of the bullion market, and has been for centuries. It is used today to gauge the current price of gold. This 999.9 pure gold bullion bar from Argor-Heraeus allows you to personally hold in your possession your own “ounce of gold”.
31.10g Certified Pure Gold 999.9 Fineness.
Protected by KINEGRAM® security device
Produced and Certified to LBMA
Standards by Argor-Heraeus refinery Switzerland