Identifying window bead for conservatory window

[meeri]

Hi everyone
First time posting on here
Please can i request any advice / help
I'm trying to get hold of some bead for my conservatory which is 20 years old but in immaculate condition.
I've not had any luck so far.. ive tried beads.com and jaybees and local suppliers.
I'm having difficulty identifying the beading
There is a print in the beading which starts off with bs 1743 ss then more numbers of which some I'm able to work out others not. Please see picture attached . Someone said ss could mean synseal shield.

Thank you in advance

 

[crank39]

Yep it's status systems

 

[meeri]

Thank you for this . What do I do please I cant find it anywhere. Are they totally obsolete. If so would there be an alternative. If I'd known at the time i would have bought extra beading of them.
I've been going in circles and round abouts .
no one is interested or either doesnt have any. Jaybees have been very helpful but dont have it either.
Best regards

 

[meeri]

Hi crank 39 . Please see photos. Thank you.