Double Bass Pirastro Metal String Guides for Bridges

[Ric Vice]

Hello all,
I'm trying to get my hands on a set of those little metal string guides that Pirastro used to put in their string sets. Anybody
got an ideas where I might get some?

 

[Francois Blais]

https://www.talkbass.com/threads/pirastro-metal-bridge-ferules.1662274/post-28747765