Quite a few people have thought it looks much earlier than the fur trade period, and I've yet to see a small trade silver ring brooch that was decorated in anyway, never-mind similar to this one. Finding something that old here would be pretty rare here, but so are any type of trade silver item. You may remember several years back you ID'd a English penny found by a friend of mine as being 13th century, so it can happen. By coincidence that was dug not too far up the road from where I found the brooch. Either way is fine to me, just curious to know what period it's from. Or like IH and I discussed while out the last time, maybe it could be both, and older brooch that stuck around and got mixed in with the fur trade silver.