English-Italian translations for watermark

filigranaUn’alta filigrana di interferenza filatelica, bucherellata solo dall’ignoranza della tradizione britannica e dal desiderio di uccidere per sempre l’arte dell’epistolografia. A high watermark of philatelic interference, perforated only by ignorance of British tradition and a wish to kill letter writing stone dead.

A translucent design impressed on the surface of paper and visible when the paper is held to the light
A value stored in a datafile to ensure its integrity, so that if the file's contents are changed then the watermark will no longer match the contents
To mark paper with a watermark

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