Timetable or rent rule, 1850-1860.

Timetable or rent rule, 1850-1860.
Timetable or rent rule for calculating the number of weeks for storage charges, as used by the dock companies, by Dring and Fage, Tooley Street, London, c. 1850-1860. The rule allows the number of weeks to be read off between two dates up to two years apart.
 
Currently on display in:
Mathematics
Year made :
1850-1860
Inventory number :
1954-305