carbon paper

US /ˈkɑːr.bən ˌpeɪ.pər/
UK /ˈkɑːr.bən ˌpeɪ.pər/
"carbon paper" picture
1.

Kohlepapier

a thin paper coated with a waxy pigment, used for making a copy of a document as it is being written or typed

:
She used carbon paper to make a duplicate of the invoice.
Sie benutzte Kohlepapier, um eine Kopie der Rechnung anzufertigen.
Old typewriters often required carbon paper for copies.
Alte Schreibmaschinen benötigten oft Kohlepapier für Kopien.