Huge mirror. Silvering is still good. Been outside for years (Wolverton MK12)

This has a frame which was once on rollers as a wardrobe door.
I would not think it is suitable for indoor use, because the frame shows signs of age.
The mirror itself seems to be in fairly good condition: can't see places where silvering on back is compromised.
We got this to improve the view out of the window, so you saw green instead of brick wall.