This gadget walking stick has a crook handle, furnished with a slender silver collar where the handle unscrews. 

The handle features a plate with the makers name: 

Dunhill 

Alfred Dunhill was founded in London in 1893 by Alfred Dunhill when he took over his father's equestrian saddlery business at the age of 21 and pivoted to serve the rising automobile industry. 

The umbrella has a ring to pull it out from the shaft, with a black cover, wooden handle, metal shaft and frame and black polyester canopy. 

The stick has a metal wood effect shaft with a metal and rubber ferrule. 

A very unusual item, perfect for a collector. 

Measurements:

Length of the stick - 86.5cm 

Diameter of handle - 12.4cm 

Shaft diameter - 2.8cm 

Umbrella length - 72.5cm 

Diameter of canopy - 101cm 

Weight - 471g 

Very good condition with some small varnish loss to the handle.