Mechanical brooch-pendant in gold and rubies

A rare brooch, also wearable as a pendant, "mechanical" and "tremblant" from the 40s, in the shape of a dog rose with leaves, in 18-karat yellow gold and with 0.80 carats of natural rubies (red corundum). The petals can be opened or closed with finger pressure, personalizing the brooch in a unique way, while the pistils inside, where the rubies are mounted, move slightly with movement. Weighing approximately 23 grams, the brooch is approximately 5 cm high.