The T-Bars used to be a part of Albertina watch chain Victorian times,
and would be inserted in vest button slit.
Nowadays it is back in fashion as a pendant, or part of a clasp of a necklace,
or as a bracelet charm.
The T-bar is made of 10K rose gold.
35 mm (1 3/8") long, 8.5 mm (5/16") wide, the bar is 2 mm across.
There are no hallmarks, tested 10K gold.
Total weight is 2.1 grams.