Sterling Lizard Inkwell

[raibos]

I have a sterling lizard inkwell, looks to be about early 20th century (arts & crafts?), the mark looks like a crown, a fleur de lis, and a diamond. The lizard is pretty detailed. Interestingly the underside of the lid under the lizard is formed from a 1919 mercury dime.

Any help on ID'ing the maker much appreciated. Hopefully there are pictures below (6 in total).

Thanks in dvance,
Raibos

Inkwell:



Lizard:




Bottom:




Mark View 1:




Mark View 2:




Under lid: