Sterling stamp kirks sterling

[Cmp6881]

Unsure but think it says kirks sterling. Don't know if American couldn't find another forum. Think it's a man's ring assuming it says m n u or man u? There gentleman was from Colombia so im wondering..... please help!
Here's pictures.

[dognose]

Hi,

Welcome to the Forum.

It's Canadian, Henry Birks & Sons, see: Henry Birks & Sons of Canada

Trev.