Just as the title describe I need help with my HIN to find out my exact year. I was told my ski was a 1990 JS 550. But my HIN doesn't make any sense.

The last four digits are K930. Or so it looks like. Which in that case, that would mean that the ski is from 1930... Which is impossible.

Here is a picture. http://imgur.com/a/aBRBo

It looks like strange because the "3" is tilted and also has an outline of another number underneath it.
If you could please help me out with this, it would be much appreciated.
Thank you