The picture below shows a larger front and back view of this Old Gold Filled Mother Birth Stone Jewelry Brooch Pin. The pin is not dated and the year that it was made is unknown. It has a small makers mark that we can not read. The pin has (11) colorful mounted birthstones for her children. It is marked on the back as follows:
1/20 12K G.F. (makers mark)
The pinmeasures about 1-5/16'' x 1-3/8''. It appears to be in mint condition as pictured.