Vintage clip-on black bow tie.  Ready-tied - no neckband, it has a Wembley clip to fix it to your collar.  Narrow slimline shape.  Dry clean only.

Width...4.5 inches ...11.5 cm.
Height...1.75 inches...4.5 cm.

Condition:  Vintage bow tie, over half a century old but still in excellent condition (used).