Aniline: Ink with a coal-tar base. Aniline inks are very sensitive and may dissolve in water or other liquids or chemicals. To prevent the erasure of cancellations and reuse of stamps, aniline inks were used to print some stamps.
Aniline: Ink with a coal-tar base. Such inks were used in stamp printing to prevent erasure of cancellations and reuse of stamps. Aniline inks are very sensitive and may dissolve in water or other liquids or chemicals.
Aniline Ink - a fugitive ink made with synthetic organic pigments produced as derivatives of nitrobenzene.
Aniline Ink - A water-soluble ink which fluoresces under ultraviolet light
Approvals Stamps sent by a dealer to a collector for examination. Approvals must either be bought or returned to the dealer within a specified time.
Aniline Ink - Water-soluble ink with a dye base that runs when wet.
Alteration - Attempt to change a stamp's identify by adding or removing a design or perforation or by changing the characteristics of the paper.
Aniline Inks
Printing inks derived from coal tar. Aniline inks were designed to be brightly colored for their day and are water-soluble.
Aniline - Oily liquid, originally distilled from coal-tar, used as the basis of certain dyes in postage stamps; in particular a bright-red ink, manufactured partly from aniline, which immediately penetrates between the fibres of uncoated paper.
 See also: Used, Stamp, Entire, Cover, Chalky paper
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