Reference:
The following information is from:
This type of tool was evidently discontinued before catalogue No. 59 was published in 1959.
Catalogue listings:
Coopers
Socket Drivers: Size: 2-1/2". Price: $76.50 per dozen (from catalogue
No. 37)
Coopers
Socket Drivers: Size: 2-3/4". Price: $86.00 per dozen (from catalogue
No. 37)
Coopers
Socket Drivers: Size: 3". Price: $95.50 per dozen (from catalogue
No. 37)
Extra
handles and Rings: $3.50 Net (from catalogue No. 37)
Extra
Rings: $0.80 Net (from catalogue No. 37)
The prices listed above are for historical purposes only; listed items are not being offered for sale.