What does "albertype" mean?

A picture printed from a kind of gelatine-coated plate produced by means of a photographic negative.

Albertype

Common synonyms include: graphic arts, gravure, halftone engraving, letterpress, lithography, mimeograph.

noun

noun ·Rare ·Advanced level

Noun

1
A picture printed from a kind of gelatine-coated plate produced by means of a photographic negative. historical

From Albert + -type, from the name of the inventor, Josef Albert, from Munich.