**Vintage Zwicky Silk Twist Sewing Machine Thread Spool - Black (Made in Switzerland)**

An exceptional find for couture tailors, heirloom sewing enthusiasts, and historical costume designers! This is a vintage spool of premium Zwicky Sewing Machine Silk Twist (Nähmaschinenseide / Soie pour machines à coudre). Manufactured in Switzerland, Zwicky is world-renowned for its unrivaled strength, elasticity, and luxury finish. Ideal for professional garment construction, hand-worked buttonholes, decorative topstitching, and luxury quilting.

**Product Specifications:**

* **Brand:** Zwicky (Manufacture Suisse)

* **Thread Type:** Sewing Machine Silk Twist

* **Fiber Content:** 100% Pure Silk

* **Color:** Jet Black

* **Spool Type:** High-Capacity Wooden or Composite Vintage Spool

**Item Condition:**

* **Status:** Vintage New Old Stock (NOS).

* **Condition:** Excellent, pristine condition. The spool is factory-sealed in its original clear protective plastic shrink-wrap. The thread is clean, tightly wound, and completely protected from dust, fading, or dry-rot. From a smoke-free home.