Vintage, or possibly older, Venetian long chevron cane segments
Five of them are 4 layer chevrons 21x6mm, 4 are perfect, one has 2 bad chips
One is a six layer chevron 13x5mm
If you have access to a lapidary saw and a grinding wheel you could make these into classic chevron beads yourself. Otherwise, all but the chipped ones are nice royal blue beads that could be used in any necklace. The chevron pattern won't show, but you will know the magic is there held inside the beads.
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