Its a long time since I needed a replacement glass.
Origonally mounted on the citroen CX series 2 the mirrors were mounted on several manufactures vehicles
such as the TVR-S, TVR part S28U 10013, and I believe Ferrari.
The components that make up the mirror have different part numbers (article codes).
The mirror stalk, between the mirror and the car mounting: Mirror stalk (CX type) part no 95647738
Mirror glass passenger side (electrically heated) Citroen part no. 95618284 and 95618283 driver side
Complete units:
Manufacturer: Alkar (they no longer list the CX model) but could be worth contacting,
www.alkar.esOE number 95618279 right side electric,
OE number 95618278 left side electric.
(Warning! I've seen two sources of info. indicating that the left side is the right side and vice versa for the same part numbers!)
Possible contacts I've noted in UK were Andrew Brodie Enginering Lt.d,
www.brodie.co.uk,
and a few european dealers with secondhand parts at ?**! prices e.g.
www.cx-basis.de.
Good luck /Paho