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 / Form Prints

Form Print Error: philatelic term for a deviation causend by an form print error

Form Print Colour Error: deviation from the intended form print colour caused by an error

Form Print Typ Error: deviation in the form print text caused by an error

Form Print Plate With Error: form print printed from a caused by an error damaged printing form

Missing Form Print: postal stationery without form print caused by an error

Partly Missing Form Print: postal stationery with partly missing form print

Inverted Form Print: postal stationery with 180 degrees rotated overprint

Double Form Print: postal stationery with twice form print