WW1 or WW2 button?

[Ace 350]

I found this today in a field. I was wondering what era it's from. The back of the button has writing on it but I can't make out what it says.

 

Amazon Forum Fav 👍

Family Maps of Hinds County, Mississippi, Deluxe Edition - Grab it through Amazon!

[Pointman]

I am not sure if this link will help you, but anyway it was posted on T-net by someone before:

Button Back Marks

 

[DIE HARD]

Definently looks WW1