Bidspirit auction | Thermoplastic Gutta Percha Owl Pin,

Thermoplastic Gutta Percha Owl Pin, Vintage Costume Jewelry - A figural brooch crafted from base metal, depicting a detailed owl perched upon a branch. The piece features highly textured relief work intended to simulate feathers and naturalistic details. The construction is Gutta Percha or Thermoplastic Style Composite. The front surface was originally treated with a dark gray or black chemical patina or finish, designed to highlight the relief details. The reverse side features a gold-toned finish and is fitted with a simple pin stem and hinge closure mechanism. No hallmarks, maker's marks, or purity stamps are visible.