Two metal dies from plaster cast
1958
A set of Pratt and Whitney B.S.dies 3/16" to 1/2"
A set of Pratt and Whitney B.S. Whitworth dies
two steel dies
1825-1832
Six sets of dies, twelve pieces
1790-1819
Collection of ovals for die centres
Collection of ovals for die centres
Loose Set of B.S.Pipe Thread dies with a Guide Die for each size 3/8"
Five dies and taps for cutting wood screws: 3/8"
Bag of metal borders for dies
Set of dies consisting of 11 pairs of dies and six odd halves
Wooden demonstration die
1881-5