Marks may also carry unique markings of letters and numbers; these may be used to identify the mark as one indicated on a nautical chart.
These nails are considered valuable to collectors, with older dates being more valuable, and unique markings such as the utilities' name also increasing the value.
The agency could then use the unique markings on those casings and bullets to identify a gun used in a crime.
That boy said Mr. Jackson's genitalia bore unique markings.
Experts, the lepidopterists, estimate that there may be 18,000 species or more in the world, each with its unique markings.
They are visually striking because of their unique markings, contrast and intensity of their coloration.
The trick is to start the tubers early enough in the season and provide them with the proper location so that their rather unique markings can be seen.
The leaves also have unique white markings that, according to legend, were the Virgin Mary's milk.
Every firearm leaves unique, reproducible markings on expended bullet and cartridge cases that it fired.
Three of the kittens had unique markings, consisting of white points and feet.