Self-Copying Paper without charcoal, for document forms that allow readable copies, removing dirt from charcoal.

Self-Copying Paper Types

CB (Original)
Coating back paper.
Original paper (transmissive).

CFB (middle copy)
Coating front and back of paper.
Middle part.
Front of paper has CF coating and the back has CB coating.

CF (Last copy)
Coating front paper.
Reciever part of a document.