Die
Also: master die, original die, die proof
A die is the original master engraving or design from which the printing plates for a stamp are made, especially in recess (intaglio) and embossed printing.
Glossary Term
An albino is a colourless, inkless impression of a stamp design — usually embossed — caused when the printing or embossing process runs without ink reaching the paper.
Also known as: albino impression, inkless impression, colourless embossing
An albino is an impression of a stamp design that carries no ink. The design is physically present — pressed into or raised from the paper — but it is colourless, so at first glance the area looks blank. Albinos are a type of production error and are most frequently found on embossed issues, though they also occur on recess-printed (engraved) stamps.
Most albinos are created in one of three ways:
A partial albino — where some of the design is inked and some is not — is generally less significant than a complete one, but can still be collectable.
An albino is not the same as a “colour omitted” error. On a multicolour stamp printed by photogravure or lithography, a missing colour simply leaves a gap; there is no impression of the missing element in the paper. A true albino carries physical evidence of the design — the embossing or the pressure of the plate — which is what distinguishes it and what expertisers look for.
Albinos are most familiar to collectors of US postal stationery, where inkless embossed impressions on envelopes turn up with some regularity. They also appear on British embossed issues and on the stamped stationery of many other countries. Albino impressions on adhesive stamps are much scarcer and should be accompanied by an expert certificate when sold at a significant price, since clever manipulation (for example, chemically removing colour) can imitate the effect.
Because albinos are colourless, they are easy to overlook. Tilt the item under a single low-angle light, or use a magnifier with a side light, to reveal the design. Scanning or photographing albinos also benefits from raking light — flat scanner illumination often makes them disappear entirely.
Albinos occur when the paper passes through the press but no ink is transferred — typically because two sheets went through together, the inking roller failed, or an embossing die struck without colour. The design is present as a raised or indented impression with no colour.
It depends on the issue. Albinos are relatively common on embossed postal stationery envelopes and are often modestly priced, but a complete albino on an adhesive stamp, especially a recess-printed one, is a scarce production error that can command a significant premium.
Hold the stamp or envelope at a low angle to a single light source. The raking light throws shadows across the embossed or indented lines and reveals the design that the eye misses under flat, direct lighting.
Also: master die, original die, die proof
A die is the original master engraving or design from which the printing plates for a stamp are made, especially in recess (intaglio) and embossed printing.
Also: stamp error, EFO, errors freaks and oddities, major error
A stamp error is a major, unintended mistake in production — such as an inverted centre, a missing colour, missing perforations or the wrong paper — that sets a stamp apart from the normal issue.
Also: stamp variety, plate flaw, constant variety, re-entry, shade variety, EFO
A variety is a stamp that differs in a recognisable, usually minor, way from the normal version — such as a shade, plate flaw, re-entry, paper or perforation difference.