what type of strings is john entwistle using in this video?

[thefunkelastic]

The late great entwistle certainly had some amazing solo's this being one of them,

http://youtube.com/watch?v=meu9rERnTf8

but in it he's using some wacky yellow strings that sound really good, anyone know what they are?

[John Wentzien]

I think they were called Maxima Gold or something like that.
He swithched to them from rotosound for a few years , then went back to rotos..

[joeman583]

Maxima Gold gold-plated handmade strings which he changed daily.