Tom Scott Antiques has dated this piece to the 1920s.

Well carved frame and the gilt finish has aged gracefully, so it's a lovely mellow tone.
The three mirror plates are all deep bevelled and they are original.
This mirror does come apart for ease of delivery and moving as it has drop on pin hinges.
Measuring:
83 inches or 211 high
71 1/4 inches or 181 central mirror glass height
50 inches or 127cm width as shown standing hinged
54 1/4 inches or 138cm width when standing flat
Tom Scott Antiques has dated this piece to the 1920s.
Specialist dealer in french & english decorative furniture and interiors
You can view the stock and full dealer information on the Tom Scott Antiques Profile Page