Fader (Studer) - Penny & Giles Studio Equipment

Fader by Penny & Giles Studio Equipment.   

type : non motorised with screen printed front faceplate and amber light (overload ?) .  

Package markings: ( see photo) :  PGF: 3622  Batch 03/91  spec: D23179/2  

Looks like a twin pot  due to no. of wires. ( 2 x Y/R/B ) reading 4.9K  and 4.7K Ohm respecively so probably 4.7K nominal.  

Status: New Old Stock, came in with a load of new Studer parts. From a company that modified  studio equipment for the BBC.  

possibly o.e part that was removed, or a modified add on.  

Studer Model : unknown, help appreciated !  

*** many other studer parts nd boards available but not listed.... please enquire ***