Paper Colour Error: philatelic term for a deviation from the intended paper colour caused by error |
Thinner Paper: postage stamp printed on paper with a lower grammage as intended caused by error |
Thicker Paper: postage stamp printed on paper with a higher grammage as intended caused by error |
Porous Paper: paper produced with not enough glue so the design print is interconecting caused by error |
Granite Paper: postage stamp printed on granite paper instead on paper without fibres caused by error |
Horizontal Laid Paper: postage stamp printed on horizontal in-stead vertical laid paper caused by error |
Firmly Sticking Postage Stamp: self-adhesive postage stamp which can not striped without damage from the backing film caused by error |