The American Printer: A Manual of Typography / Containing practical directions for managing all departments of a printing office, as well as complete instructions for apprentices; with several useful tables, numerous schemes for imposing forms in every variety, hints to authors, etc.

by Thomas MacKellar

A Sheet of Twelves, without cutting.

Outer Form. Inner Form.

A Sheet of Twelves, with Two Signatures.

Outer Form. Inner Form.