Zinc based and in a very good, barely worn condition with practically all of the silver plate still present and some slight patina.
Not marked but a known variation that has been attributed to the company of Wilhelm Deumer, Lüdenscheid. See GCA database.

Zinc based and in a good, slightly worn condition with lots of the silver plate still present and some patina.
Not marked but a known variation that has been attributed to the company of Wilhelm Deumer, Lüdenscheid. With the typical large hinge plate.
See GCA database.

Zink based and in a good, slightly worn condition with most of the silver plate still present and some patina.
Not marked but a known variation that has been attributed to the company of Wilhelm Deumer from Lüdenscheid.
With the typical large plate under the hinge.