Small convolute rhinestone jewery mid- 20th century

Small convolute rhinestone jewery (3 pieces); 3 unusual sparkling and shimmering rhinestone broches with light blue, dark blue and green rhinestones; probably Gablonz ( Bohemia), mid- 20th century; each rhinestone is individually edged; the base is made of brass and on the back you can stil see the old solder joints of the old craftsmanship; traces of use according to age; measurements light blue: ca. 6,5 x 6,5 cm - dark blue: 6,5 x 9 cm, green 6 x 8,8 cm