Zinc based and in a very good, slightly worn condition with practically all of the original grey finish still present.
Not marked but a known variation that has been attributed to the company of Alois Rettenmaier, (L/59). Also commonly referred to as the „Flatback“. See Marc Garlasco, The Flak Badges and GCA database.

Zinc based and in an excellent, probably unworn condition with all of the original grey looking finish still present.
Not marked but a known variation that has been attributed to the company of Alois Rettenmaier, (L/59). Also commonly referred to as the „Flat Back“. See Marc Garlasco, The Flak Badges and GCA database.

Zinc based and in a very 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 Alois Rettenmaier, Schwäbisch Gmünd (L/59). Commonly referred to as the „Flatback“ . See MarcGarlasco, The FlakBadgesandGCAdatabase. .

Zinc based and in an excellent, unworn condition with all of the original grey finish still present.
Not marked but a known variation that has been attributed to the company of Alois Rettenmaier, (L/59). Also commonly referred to as the „Flatback“. See Marc Garlasco, The Flak Badges.
Difficult to find in such condition.

Zinc based and in an excellent, unworn condition with all of the original finish still present.
Not marked but a known variation that has been attributed to the company of Alois Rettenmaier, (L/59). Also commonly referred to as the „Flatback“. See Marc Garlasco, The Flak Badges.
Best condition example.