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Introduction Additional Stamp Impressions A T Ms Burelages Cliche Cancellations Cuts Design Prints Die-cuttings Embossings Form Prints
Gums Hand Postmarks Ink Jet Cancellations Lumines-
cences
Machine Postmarks Margin Prints Meter Stamps Overprints Pencancel-
lations
Perforations Press Marks
Print Substrates Postal Stationeries Punches Reverse Prints Roulettings Second Overprints Separate Productions Se-tenants Sheet Stamps Silk Threads Stamp Booklets
Stamped Envelope Overprints Stamp Impressions Third Overprints Tress Rosettes Watermarks Others

Knowledge / Errors / Machine Postmarks

Machine Postmark Error: philatelic term for a deviation caused by a machine postmark error

Machine Postmark Colour Error: deviation from the intended machine postmark colour caused by an error

Machine Postmark Typ Error: deviation in the machine postmark text caused by an error

Machine Postmark Design Error: deviation in the machine postmark design caused by an error

Machine Postmark on Reverse: postal shipment caused by an error with machine postmark on reverse instead on front

Machine Postmark on Two Sides: postal shipment caused by an error with the same machine postmark on front and on reverse

Partly Missing Machine Postmark: postal shipment caused by an error with partly missing machine postmark

Vertical Instead of Horizontal Machine Postmark: postal shipment caused by an error with 90 degrees rotated machine postmark

Inverted Machine Postmark: postal shipment caused by an error with 180 degrees rotated machine postmark

Partly Inverted Machine Postmark: postal shipment caused by an error with partly 180 degrees rotated machine postmark

Double Machine Postmark: postal shipment caused by an error with twice machine postmark

Double Machine Postmark One Inverted: postal shipment caused by an error with twice machine postmark one 180 degrees rotated

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