I believe it is Brighton.
http://www.brighton.com/about_us/history/
Brighton marks their jewelry designs with a cursive initial B. Their rings are sterling silver and are marked as such, but the rest of their jewelry is merely silver plated and gold tone.
the nature of the character as defined by the script.
There is no way for us to get inside your brain and use your eyes to see what script you are looking at.
An Arabic script is the 28-letter abjad used for writing the Arabic language.
In a letter, you would 'add the ps' after (below) signing the letter. A Post script can be added by using the initials like so:P.s: Or, you may even add a Post post script by using THESE initials:P.p.s: I hope this posting of Post script and Post post script usage is of some use to you.
Letter, line or scene
Post script
After the signature.
"Super"script raises the letter above the line "Sub"script lowers the letter below
The typeface French Script MT was created by the type designer Matthew Carter. He designed it in the 1990s for the Monotype Corporation as an elegant script font inspired by the calligraphy styles of 18th-century French handwriting.
"P.S." stands for "postscriptum," which is Latin for "written after." It is used to include additional information or a message at the end of a letter, after the conclusion has been made.
Post Script
An ayn is the letter ع in Arabic script.