# 2180 (1988) Carlson, Blue Violet, LB tag, DG, perf 11 - Zip BK/4,UR, MNH
Regular price
$1.15
Sale
US 1988
CHESTER CARLSON
GREAT AMERICANS STAMP
CHESTER CARLSON
GREAT AMERICANS STAMP
Second Series
Physicist, inventor, and patent attorney. He is best known for having invented the process of electrophotography, which produced a dry copy rather than a wet copy, as was produced by the mimeograph process. Carlson's process was subsequently renamed xerography, a term that literally means "dry writing."
Physicist, inventor, and patent attorney. He is best known for having invented the process of electrophotography, which produced a dry copy rather than a wet copy, as was produced by the mimeograph process. Carlson's process was subsequently renamed xerography, a term that literally means "dry writing."
Scott 2180
Blue Violet
Large Block Tagged
Dull Gum, Perforated 11
Upper Right Stamp Zip Code Block of 4
Mint Never Hinged