I found the following button in a field in Southwestern Ontario near Lake Erie.
There used to be a small village there at one time. Could someone help with
ID'ing the coin. Sorry that the picture isn't too good.
Is there a back-mark too the button, back of the button with companies name? Think this is just a vintage crown and shield button, don't think Waterbury made this crown and shield there are literally 1,000s of different styles.
Firmin and Sons made millions of buttons and they are still in business today. From a back-mark book I have it says the back-mark was used "Firmin & Sons London (late 19th Century)" so your button would be late 19th century 1875-1899.
For future reference if you don't already know the back-mark of the button is like a thumb print. Kewl find!