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	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 / Errors / Cliche Cancellations

Cliche Cancellation Error: philatelic term for a deviation caused by an cliche cancellation error

Albino Cliche Cancellation: colourless instead coloured cliche cancellation; only the embossed outlines are visible

Missing Cliche Cancellation: postage stamp without cliche cancellation caused by an error

Inverted Cliche Cancellation: postage stamp with 180 degrees rotated cliche cancellation

Double Cliche Cancellation: postage stamp with twice cliche cancellation