Don't know if this helps. I do make lampwork beads. Have studied beads for over 40 years. Have reproductions made of Trade Beads (Because some people are not Rich). Worked with pioneer Bead man many years ago Gerald Fenstermaker and have some of the beads he found and the states and counties where they came from. The beads in my photo are indeed new. In my experience many times the newer beads have the colors {Sunk into them}, many older have a little more pattern nearer the surface. I have seen times the whites are brighter or a bit more chalky.