
If I have done this correctly (I'm still pretty blog-challenged) you should be able to click on the chart at the right to see it full sized. It's a conversion chart of old and new Swarovski article numbers (basically a style number) next to a line drawing of the bead. Now the trick is to know when the numbers were changed. In 1968 the numbers were converted to 4 digits so you know that if the 2 or 3 digit number is printed on the package or box they were made prior to then.
More to come...