Knowledge / Prints / Print Substrates / Accidentals

Paper Accidental: philatelic term for a paper deviation caused by an accidental

Paper Colour Accidental: philatelic term for a deviation from the intended paper colour caused by accidental

Toned Paper: during the print-ing process toned paper surface in a light colour shade caused by accidental

Thinner Paper: postage stamp printed on paper with a lower grammage as intended caused by accidental

Thicker Paper: postage stamp printed on paper with a higher grammage as intended caused by accidental

Repaired Paper Web: caused by accidental damaged paper web repaired before the design print was made

Paperfold: during the printing process arose wrinkle formation caused by accidental

Paper With Alien Element: during the paper production included alien element caused by accidental

Sheet Turn-Over: paper sheet turned over before the design print, overprint or perforation was made caused by accidental

Oily Paper Print: postage stamp with seeming printed on oily paper caused by to much printing oil caused by accidental (glassy paper)