A mark in the form of a thin line made in banknote paper with highly coloured silk fibres to prevent photographic counterfeiting.
- All the images made with these lenses are unique, with the thread marks acting as a sort of marking of territory.
For editors and proofreaders
Line breaks: thread mark
What do you find interesting about this word or phrase?
Comments that don't adhere to our Community Guidelines may be moderated or removed.