Thank you, Trev! It does show that spelling on the mark, but it's very faint. I had to take another pic and blow it up to see it. Then I googled it and found nothing. I'm so happy you were able to find this. From looking up the info you posted, I was able to find this box, but nothing else so far.
I'm very excited to see what else can be dug up about this jeweler!
Here's the link to the page, if you're interested: (admin edit - see Posting Requirements )