Rare best Silver bar brooch with a C clasp. (early 1900's )

Rare Silver bar brooch with a C clasp. (early 1900's ) Judging by the shape of clasp and the length of the actual pin which is slightly longer than the best pin.
Very beautiful piece . It consists of a thick chain held by an acorn in each end.
It has been tested positive for silver but I cannot find a hall mark.
It needs a little cleaning but we do not like to disturb our items as our collector buyers prefer to purchase item wide s as we find them.
Approx 2" long x 1/4"

This piece can be Unisex due to its sophisticated design.

In very good condition .

Acorns are the seeds of the mighty oak tree, are rich with meaning. Also, their meaning varies from culture to culture around the world. Generally speaking, though, acorns represent immortality through rebirth, the cycle of life and the seasons, growth, might, humble beginnings, abundance, prosperity, and good luck.

Ref. 4005