Unusual vintage map, made from metal with 6 convex circles of different sizes offering different viewpoints. 
The reverse had a sturdy metal frame and two holes for wall hanging. 
In true vintage condition. The colours have faded slightly, there are some chips to the paintwork and one of the smaller circles is bent out of shape. This isn’t hugely visible when viewed from the front. Please see photos for more details. 
Dimensions:
Width: 870mm (34 1/4”)
Depth: 35mm (1 3/8”)
Height: 630mm (24 3/4”)
Weight: 3.3kg