thumb|Illustration of a typometer. The upper edge is marked with millimeters, half centimeters and centimeters; the lower edge is marked with a Point (typography)|typographic point scale in groups of three, six and twelve points (one quarter cicero, half a cicero and one cicero) thumb|Front and back of an old metal typometer with a hook for manual type setting thumb|Plastic typometers, from the 1980s, with different scales
thumb|Illustration of a typometer. The upper edge is marked with millimeters, half centimeters and centimeters; the lower edge is marked with a Point (typography)|typographic point scale in groups of three, six and twelve points (one quarter cicero, half a cicero and one cicero) thumb|Front and back of an old metal typometer with a hook for manual type setting thumb|Plastic typometers, from the 1980s, with different scales
A typometer is a ruler which is usually divided in typographic points or ciceros on one of its sides and in centimeters or millimeters on the other, which was traditionally used in the graphic arts to inspect the measures of typographic materials. The most developed typometers could also measure the type size of a particular typeface, the leading of a text, the width of paragraph rules and other features of a printed text. This way, designers could study and reproduce the layout of a document.
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).