vintage bright gold city of Dallas lapel pin with amethyst souvenir jewelry

vintage lapel pin
color: gold

jewelry pin
bright gold tone metal (much brighter than photos)
looks like large "C" with "DALLAS" underneath
tiny amethyst stone at bottom
marked with lozenge on back....no other identifying marks
locking pin back

length: 5/8"
width: 3/8"

excellent condition