External calipers tool made by Bob Watkins

c1965 in Altrincham

External calipers tool used to measure the external size of an object, made by Bob Watkins during his time as an apprentice at the Linotype and Machinery Co. in Broadheath, Trafford in the mid-1960s.

As part of the five year apprenticeship, in order to learn the main processes involved in mechanical engineering, namely turning, shaping, milling, grinding, fitting and drilling, Linotype apprentices like Bob Watkins were required to make their own set of tools, which formed part of the toolkit they used out on the factory floor.


Printing & Writing
Object Number:
Gift of Bob Watkins

Cite this page


We encourage the use and reuse of our collection data.

Data in the title, made, maker and details fields are released under Creative Commons Zero

Descriptions and all other text content are licensed under a Creative Commons Attribution 4.0 licence

Using our data


Download catalogue entry as json

Download manifest IIIF

Our records are constantly being enhanced and improved, but please note that we cannot guarantee the accuracy of any information shown on this website.