A stunning piece of vintage industrial history and nostalgia. 
I have had these before, however I don’t often get them with the numbers. This one is numbered 51-100. All intact and really very decorative. 
 
This lovely piece would have been hung on the wall beside a clocking in/out machine in a work place, possibly a factory or a shop.
 
This one is particularly nice having the wooden frame around the slots and unusual with two rows of slots. 
Measurements: 23.5 x 5 x 90.5cm high