Black bow tie by Akco.  Pique acetate.  Made in England, probably in the 1970s.  Pre-tied style. Dry clean only.
Black pique neckband and tongue-and-slot adjuster.
The size of the bow itself is 4.5" x 2" (12 x 5 cm) approx.  This is a narrow style.
Adjustable to fit all collar sizes from 14 to 18.25".

Condition: Excellent condition (used).