Adjustable wrench with dial and scale for measuring nut dimensions.
Fullsize image: https://s3-us-west-1.amazonaws.com/h...e_fullsize.jpg
Previously:
Micrometer mug - photo
Mitutoyo: The Origin and Evolution of Calipers - PDF and photo
Huge calipers - GIF
Scribe gauge from calipers - video
Custom caliper case - photo
Calipers and micrometer Soviet Union flag - image
Bookmarks