Talk:troy weight

a 12-ounce pound, a 20-pennyweight ounce, and a 24-grain pennyweight

system of weights: a system of weights used for precious metals and gemstones, based on a 12-ounce pound, a 20-pennyweight ounce, and a 24-grain pennyweight 
Microsoft® Encarta® 2009

--Backinstadiums (talk) 16:47, 21 March 2020 (UTC)