Any way to I.D. which Barts I just bought?

[COOL AND DEADLY]

Just got a great deal on a set of Bartolini jazz pups. I was wondering id there is anyway to I.D. which ones I ended up with. They make at least four different kinds from the official website. There are no marking or numbers. Any ideas? Maybe they have different weights? I can't tell from the Bartolini website.

 

[David Santos]

Hi! This is posted on the wrong forum. You should ask this question on the electric bass side.

David Santos