Tombak/brass based and in a very good, slightly worn condition with all of the silver plate still present and then dark oxidised.
Not marked but a known variation that is commonly referred to as the „Ball Hinge“. See Marc Garlasco, The Flak Badges.

Tombak/brass based and in a very good, slightly worn condition with most of the original finish still present.
Not marked but a known variation that is commonly referred to as the „Ball Hinge“ due to the shape of the hinge. See Marc Garlasco, The Flak Badges.

Tombak/brass based and in an excellent, probably unworn condition with all of the dark oxidised finish still present, the eagle attached separately.
Not marked but a known variation that is commonly referred to as the „Ball Hinge“. The largest of the flak badges.
See Marc Garlasco, The Flak Badges.
Nice example.

Tombak/brass based and in a very good, slightly worn condition. The eagle attached separately.
Not marked but a known variation that is commonly referred to as the „Ball Hinge“. See Marc Garlasco, The Flak Badges.