Pair Art Deco 12 Sided Glass Door Knobs + Nickel Back Plates / key

One matching pair of original Art Deco twelve sided glass door knobs with mercury mirrored centers.  Come complete with their original nickel back plates (2 per pair) spindle and grub screws. 

Knobs measure: 

• 5cm (2") wide
• will project 6cm (2 1/4") from the door

Back plates measure:

• 18cm (7") high
• 4.5cm (1 1/4") wide

The center of the keyhole is 2cm from the edge, 5cm from the knob center.

In lovely antique condition. Some wear to chrome plating on knob collars and some misshaping on one of the keyholes.