parallel rulers

Harling Parallel Ruler

Engraved " W.H.Harling 117 Moorgate London".​

Probably circa early 1900s
 

 Parallel Ruler - Stanley 1873 

This is a beautiful example of a parallel ruler and case. There is a date  of 1873 marked on the original trade label.

Parallel Ruler

Labelled E Esdale and Sons, 

40 Hunter Street, Sydney.

​The address shows that it is probably circa 1940s but probably made in London.

This Parallel Ruler was donated by John Webber