Found this button along a shoreline where trappers and traders frequented. The backmark says "BEST", and it appears that arrows border the rim. Any ideas on the button company? Military?
Probably just a civilian flat button that would have been silver/gold plated. The back most likely said something like "BEST QUALITY" and are from the early-mid 1800s.
Other quality designations I've found personally have any combination of: BEST QUALITY SUPER RICH WARRANTED PLATED TREBLE GILT EXTRA RICH ORANGE GOLD COLOUR (etc.) on them and don't always list a makers mark. The fronts are usually plain but some of them have various types of floral decorative designs.