DING DING!! Rauville great job! Mart, on numbered ones it appears it goes up to the number 8. So are there 7 and 8 dots on it?
I had totally forgotten about Vegetable Ivory!!!! Because of the lack of supply and hence the restrictions on use of animal ivory....vegetable ivory was vastly used in the 1800's forward to make buttons, jewelry, games, beads, figurines.
I must say I am enjoying your treasures wilhenri!