www.925-1000.com

Howdy
I think we are all familiar with the current "Robins Egg Blue" version of the Tiffany box color?
Yesterday I purchased a tie bar in a box of a different color: navy blue. This is a velvet & satin lined presentation box of the older type. But it got me wondering just when the "turquoise" blue ...

Could someone please explain the extensive French hallmarking as shown on this site at:
http://www.925-1000.com/Ffrench_marks.html" onclick="window.open(this.href);return false;
?
Thanks
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Thanks so much for the additional info.
I had wondered if 10:18 related to the weight but at 263.4 gms [8.23 troy ounces] there was too much difference to seem reasonable.
Do you suppose the extra weight was polished off? [How many pennyweights in a troy ounce?] It doesn't seem like anything is or ...

Waylander: Many Thanks Again!!!
I will post anything further I uncover...
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Thanks Waylander! I do appreciate the confirmation and additional info. As a newbie to old silver I don't have any other reference sources for further study. Is there anything you would recommend I [buy or borrow to] read to gain more information about this piece & Thomas Bolton?
What is the "10:18 ...

I have a small square tray with hall marks indicating it may have been made in Dublin in 1728 or 1729 [if I am reading correctly & using this site correctly as well...] but I am lost regarding the other marks.

Have I made a correct determination of date and origin?
Might some one be able to ...