A few good shaving mirrors pictures I discovered:
Edwardian shaving mirror
Image by practicalowl
Mirror back, displaying repaired section.
Image by practicalowl
Not entirely content with this, it was the extendable arm the mirror rests on, it slides along that column, that required replacing.
RSCN2907
Image by tellmewhat2
Shaving Mirrors – Rasierspiegel
Nice Shaving Mirrors photos