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 / Se-tenants

Accidental Se-tenant: philatelic term for an accidental se-tenant

Pair With Design Print Colour Accidental: pair one stamp with design colour accidental	Pair With Shifted Design Print: pair one postage stamp with shifted design print	Pair With Overprint Colour Accidental: pair one stamp with overprint colour accidental

Shifted Overprint: pair one stamp with horizontal or vertical shifted overprint	Pair With Watermark and Without Watermark: pair with shifted design print one stamp printed on paper without watermark