I just love jewelry made out of natural stones! Vintage "REAL SILVER" Pin (marked as such on the reverse) is most likely Sterling Silver. It features 2 Shamrocks flanking a Finely Detailed Celtic HARP covered in traditional symbols. HEART shape pieces of Native Irish Marble are mounted into each of the three 'lobes' of both shamrocks - the symbol of the "Irish Isle".
Vintage Irish jewelry MEASURES Over 2 Inches Long End to End and appears to have had its original "C" clasp changed to a secure locking one. Retains Original Fully Functional Hinge & Pin Stem. Vintage Celtic pin was found in the Rochester, NY area and has not been cleaned/polished in many years... displays Old Dark Patina that attests to its age. Bar Brooch is in VERY GOOD CONDITION! ... I do not see any damage ~ loss to its semi-precious stones.
GREAT Gift for a nature lover, person of Irish Heritage - could be worn by a Man or a Woman. Nice Addition to your sterling pin, traditional musical instrument, Celtic or stone jewelry collection. St. Patrick said the shamrock represents The Father, Son & Holy Spirit.