1960’s Destination Bus Numerical Blind in Winding Box

1950’s/60’s Bus Destination Numerical Blind. 

I presume it to be from an Edinburgh bus as it also came with Edinburgh destination blinds. 

In very good original as found condition. 
Comes in original window box with winding handles.
Works well. 

Stamped Norco, STATHAM STREET PENDLETON SALFORD. 

Box Width 48cm /19”

Height 47cm / 18.5”