VTG Mid-Century Metal Wind-Up Clock Key Silver Brass Square Hole Winder Tool

Vintage metal clock key with a square hole winder shaft. Made of silver-tone steel with a brass shaft, this tool was used to wind up antique or vintage mechanical clocks, toys, or music boxes. It has a double-loop handle for easy grip and turning. Details • Material: Steel and brass • Finish: Silver and brass-tone • Shape: Square hole key • Use: Wind-up mechanical clocks, music boxes, or toys • Estimated Age: Mid-20th century • Made: Likely USA or Europe (unmarked) • Condition: Light patina and surface wear consistent with age; no damage