Fr. v. Dreyse’s 1877 Patent No. 826 and the Booklet explaining the Chamber Inserts.

Edited by Larry B. Schuknecht

    The scans of this Booklet were found in Dietrich Apel’s files, nothing is known about their origin. They were crowded two pages to a sheet so some pages are incomplete. The booklet is an elaboration on the Patent Text and the Chamber insert’s use.