The antique hair comb depicted is an elegant piece of decorative jewelry from around 1910, likely associated with the late Jugendstil period, also known internationally as Art Nouveau. Here are some defining characteristics:

• Material: The comb appears to be made of celluloid or a similar early plastic, featuring a translucent, amber-hued color reminiscent of tortoiseshell.

• Shape: Five long, tapering prongs extend downward - typical of combs designed to slide into and secure updos.

• Decoration: The upper portion is elaborately open-worked with floral carvings, showcasing stylized leaves and tendrils. This intricate ornamentation reflects the high level of craftsmanship of the era.

These types of combs weren’t just functional; they were also worn as fashion statements, especially during formal occasions. They played a subtle but elegant role in the sophisticated hair styling trends of the early 20th century.