1963 vintage sewing supply by J&P Coats.
#23-A NUGREY
The Slim Smooth Smart Metal Zipper.
12 inches
Made in the USA
Color Matched by Number to J. P. COATS Threads, Tapes, and Trims
The packaging is worn and may have been opened for the photograph shown here, but the zipper is new old store stock, and is unused.