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Overprints A T Ms Additional Stamp
Impressions
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lations
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cences
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Postmarks
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cellations
Stamped Envelope
Overprints
Burelages Form Prints Watermarks Stamp
Impressions
Perforations
Se-tenants Second Overprints Others

Knowledge / Errors / Watermarks

Watermark Error: philatelic term for a deviation caused by a paper with watermark

Mixed Up Watermarks: postage stamp printed on a different paper with watermark as intended

Watermark Typ Error: deviation in the watermark text caused by an error

Watermark Plate With Error: watermark made from a caused by an error damaged watermark form

Missing Watermark: postage stamp without watermark caused by an error

Partly Missing Watermark: postage stamp printed on paper with partly missing watermark

With Watermark: postage stamp printed on paper with watermark caused by an error

Vertical Instead of Horizontal Watermark: postage stamp printed on paper with 90 degrees rotated watermark

Horizontal Instead of Vertical Watermark: postage stamp printed on paper with 90 degrees rotated watermark

Inverted Watermark: postage stamp printed on paper with 180 degrees rotated watermark

The Wrong Way Round Watermark: postage stamp printed on paper with watermark the wrong way round

Distorted Watermark: postage stamp printed on paper with distorted watermark

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