Overprints	A T Ms	Additional Stamp Impressions	Design Prints	Sheet Stamps	Print Substrates	Roulettings	Punches	Separate Productions	Meter Stamps	Postal Stationeries
Cliche Cancellations	Gums	Pencancel- lations	Hand Postmarks	Tress Rosettes	Lumines- cences	Stamp Booklets	Machine Postmarks	Without Separation	Embossings	Press Marks
Margin Prints	Reverse Prints	Silk Threads	Die-cuttings	Ink Jet Can- cellations	Stamped Envelope Overprints		Burelages	Form Prints	Watermarks	Stamp Impressions
Perforations	Se-tenants	Second Overprints		Others

Knowledge / Accidentals / Die-cuttings

Accidental Die-cutting: philatelic term for an accidental die-cutting

Shifted Die-cutting: deviation from the intended die-cutting position

Blind Die-cutting: die-cutting whitch is not fully punched

Misssing Die-cutting Hole: die-cutting with missing parts caused by a broken die-cutting pin