Probably Austrian, 17th/ 18th century

Overall the condition of the metal is good, with minor wear and dirt to the surface consistent with age. There is some corrosion to the surface of the metal, as consistent with the material. This has led to flaking of the red patina in areas. There are a few minor fissures, including to the proper left orb at the bottom around the opening. The orb on the proper left side at the top is slightly loose in its setting but stable.There is some warping to the metal in areas. There is a modern metal wire at the back.
"In response to your inquiry, we are pleased to provide you with a general report of the condition of the property described above. Since we are not professional conservators or restorers, we urge you to consult with a restorer or conservator of your choice who will be better able to provide a detailed, professional report. Prospective buyers should inspect each lot to satisfy themselves as to condition and must understand that any statement made by Sotheby's is merely a subjective, qualified opinion. Prospective buyers should also refer to any Important Notices regarding this sale, which are printed in the Sale Catalogue.
NOTWITHSTANDING THIS REPORT OR ANY DISCUSSIONS CONCERNING A LOT, ALL LOTS ARE OFFERED AND SOLD AS IS" IN ACCORDANCE WITH THE CONDITIONS OF BUSINESS PRINTED IN THE SALE CATALOGUE."

So-called Schandmasken (Scold's bridles), were employed as punishments for minor wrongdoings. Its wearers were paraded in a public space such as a town square and exposed to the ridicule of onlookers. Note a comparable Schandmaske at the Germanisches Nationalmuseum in Nuremberg (inv. no. StR 108).