Whitworth measuring machine in glass case
Whitworth measuring machine in glass case with 2' V' plates; 1880
Whitworth measuring machine in glass case with 2 'V' plates, a mahogany box of measuring heads and an open spanner and a ring spanner.
Whitworth measuring machine in glass case with 2' V' plates; 1880
Box of Whitworth measuring heads and a open spanner and a ring spanner for use with the measuring machine.