Please post the reverse.
Unless it says 999 fine silver on the reverse or on the edge, it may only be gold plate over copper, perhaps with a silver plate.
Can you weigh it accurately? A pound of silver weighs 5760 grains/185.19 grams/12 oz troy. A pound of copper weighs 7000 grains/246.91 grams/16 oz av.
If it's a pound of silver, it's a $516 doorstop; copper, about $4.50.



















