Carbon Copy

Carbon copy technology, based on the use of carbon paper, was once an indispensable part of business, legal, and administrative communication. A carbon copy is a duplicate of a document made by placing a thin sheet of carbon paper between two sheets of regular paper. When pressure is applied—typically through handwriting or typing—

the ink on the carbon paper transfers onto the sheet below, producing a replica of the original. This technology was particularly vital before the advent of digital copying, allowing multiple versions of a document to be created simultaneously. The term “cc” (carbon copy) survives today in email systems, a digital vestige of this analog practice. Carbon paper was invented in 1801 by

Pellegrino Turri, an Italian inventor, who also built one of the first typewriters. He created carbon paper to provide ink for his early typing machine, which he designed to assist his blind friend in writing. However, widespread commercial use of carbon paper did not begin until the mid-19th century, particularly after the advent of the typewriter in the 1870s. The carbon paper industry took off alongside the rise of typewriting, enabling businesses to produce

original and duplicate documents in one step. By the early 20th century, the carbon copy had become standard in business transactions, legal correspondence, and bureaucratic paperwork. Carbon paper typically consisted of a wax-based coating impregnated with pigment or dye, applied to one side of tissue-thin paper. It came in different colors—usually black, blue, or purple—and was sold in flat sheets or rolls. Throughout the first half of the 20th century and into the 1970s,

carbon copies were integral to recordkeeping, from small offices to large government agencies. A secretary or clerk could produce as many as six or seven legible copies in one go, depending on the strength of the keystroke and the quality of the paper and ribbon. It was especially useful in multi-part business forms such as invoices, receipts, and purchase orders. Over time, innovations like “carbonless copy paper,” which used chemical coatings to replicate writing pressure,

emerged in the 1950s and gradually reduced the need for traditional carbon paper. By the 1980s, photocopy machines and early computers with printers further marginalized the use of carbon paper, which became increasingly obsolete. Nevertheless, carbon paper remains in limited use in specific niches, such as receipts,

handwritten invoices, and artistic applications like nonprinting. Carbon paper and its role in generating carbon copies also left a cultural imprint. The abbreviation “cc” was popularized as a standard part of business correspondence, designating who else received a copy of a letter.

It even entered common language, where people say they “cc’d” someone even in purely verbal contexts. In literature and cinema, the smudgy, inky texture of carbon copies came to symbolize the bureaucracy and impersonality of the mid-20th century office. Humorously, carbon paper was notorious for staining fingers and documents, and there were frequent jokes

and cartoons centered around its messy nature. In a broader historical sense, carbon copying marked a key stage in the evolution of duplication technology—bridging the gap between handwritten records and the mass reproducibility that photocopiers and digital files would later provide.