Embossing Accidental: philatelic term for a watermark deviation caused by an accidental
Watermark Size Accidental: philatelic term for a deviation caused by accidental from the intended watermark size
Watermark Text Accidental: philatelic term for a deviation caused by accidental in the watermark text
Shifted Watermark: postage stamp with caused by accidental shifted single watermark to another position as intended
Split Watermark: postage stamp with caused by accidental shifted single watermark which is extended over multiple sheet positions
Missing Watermark: postage stamp with caused by accidental shifted design print which reach a sheet position without watermark
Pair With Watermark and With Missing Watermark: pair with caused by accidental shifted design print one stamp was printed on paper without watermark
Oblique Watermark: postage stamp with caused by accidental printed on paper with watermark shifted out of alignment
Light Watermark: postage stamp with caused by accidental printed on paper with clear but too light watermark
Strong Watermark: postage stamp with caused by accidental printed on paper with clear but too strong watermark
Uneven Watermark: postage stamp with caused by accidental printed on paper with wavering watermark
Cloudy Watermark: postage stamp with caused by accidental printed on paper with unclear watermark
Distorted Watermark: postage stamp with caused by accidental printed on paper with drawn-out watermark
Watermark Space Accidental: philatelic term for a deviation caused by accidental from the intended space between two parts of a watermark
Watermark Mold With Accidental: philatelic term for a watermark made from a caused by accidental damaged mold form
Stitch Watermark: watermark like design in the paper caused by stitches