Since most people don't wear brooches, I added the sterling curved bar chain to make it into a necklace. If you want the brooch alone let me know.
The pendant measures 2 1/4 by 1 1/8 inches and is .41 inch thick. The necklace is 16.5 inches long stretched out. It weighs 22 grams.
There are 925 silver hallmarks for Warsaw Poland, the woman's profile, and a stamped sideways S with three marks under it - a maker's mark - on the pendant.