406025? 406 prefix?

[Firelilly]

I have a pound of glass that came packaged with the number 406025 on the plastic wrap. None of the glass rods are marked at all. I would call the rod peridot like in color.

I can't find any 025 in my color chart. I do see a 591025 Green Olive Transparent on the Frantz site. This 406025 doesn't really look like the pic of the 591025 to my eye.

What type of glass had a 406 prefix?

Thanks!

Lil