prototype (part of speech: noun)
gauge (part of speech: noun)
- Keep always by thy side this sterling yardstick which I give thee, for it marks the inches and the ells to which the stature of a prince must measure. - "The Little Colonel at Boarding-School", Annie Fellows Johnston.
- I thought I was taller, but I suppose I will have to believe my own yardstick. - "The Melting of Molly", Maria Thompson Daviess.
- And we have further shown how wide indeed is the scope of the static yardstick, the dollar. - "The Value of Money", Benjamin M. Anderson, Jr..