1963 Copenhagen Blue 16 inch Metal Neck Zipper

1963 vintage sewing supply.
COPENHAGEN BLUE
16 inches
Neck metal zipper
#5 Made in 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.