Silver leaf and twisted vine pin brooch great for a lapel vintage ll3040

If you wear man-tailored suits with lapels, this silver pin will be a great accessory. The pin is 2.25 inches long and is shaped like a leaf wrapped in a long twining vine. This is a three dimensional pin and in the under gallery are more fern-like leaves at top and bottom. There are also 3 silver balls at the base. The pin is silver but unmarked so not sure of the purity. It is not plated. My sense is that it is an artisan piece at least 45 years old and could be twice that. It is very nicely made and has a solid safety clasp on the back but it has been soddered on and may be replacing an old C clasp. Silver weight is 15 grams.