Turn of the century brass plated hour- glass pendant with rust coloured sand.
 
This timer is actually a 30 second timer, and was used by nurses in hospital to take the pulse of a patient. (take the pulse rate and double it for your rate)
 
Slim and elegant I thought it would make a great pendant.
 
70mm long. 10mm diameter
 
weighs - 11.2g
 
Good antique condition