So cool!
 
Sterling silver antique propelling pencil fob, with clever enamelled calendar that lines up all the days of the month with a twist of the case.
 
If you press the button on. the top the pencil drops down and you are ready to go!
To close - push the button and manually. push the pencil back up.
 
Looks great on a chunky silver albert chain
 
marked - S. MORDAN & CO (the famous propelling pencil company)
measures - 75mm long approx
weighs - 27g
English circa 1780 -90
 
Good antique condition - some wear commensurate with age.