I’m quite sure this is very early. I have a small collection that I’m selling. Really a novice on all the marks but always thought they were cool. Comes apart in three pieces. Has lots of marks in the bottom of the top. I’ve tried to get a good picture. There are a couple indents on the outside other wise in good condition. Measurements are in the pics and weights about 19.2 grams. Shaped like an egg. Great for a collector. Also came in a little pouch.
eBay