Help ID button

Hello all, I am having a difficult time verifying the ID of this button I dug yesterday. The front has a pyramid of circles (I am hoping are cannon balls) with a crown over top. On the back is written "Treble gilt stand colour." After a few hrs of research and many dead ends the closest picture/description I could find belonged to those worn by the Royal Spanish Engineering or Artillery Corps in the late 1700s - early 1800s (picture below.) What I dug looks very similar minus the crossed cannons. I was wondering if anyone has insight or could point me in the direction of good sources to research further. It would be great to find out what I actually have here.