Vintage 80s 90s Enamel Brooch Geometric Design Oval Pin Blue Statement

Vintage 1980s/1990s metal and enamel brooch in shades of blue, dusty pink and gold. Design is geometric, a little bit of art deco revival and some numbers that I'm not sure the significance of - 21 5 20 6 - maybe a code you can decipher or give meaning for yourself. • Sturdy clasp closure for secure wear • Dimensions: 2.5" x 0.5" • Lightweight for everyday use Some minor use wear, no major flaws that I can find. Please see images for details.