Crown 2nd Model was developed in 1944. The developed design was unique, taugh, and smooth. They were used on many type of USAF Flight Clothing in 50s-60s. NOS from 50s!!
Rare type!!

Manufacturer: The Spool Cotton Company-Crown Fastener Div.
Era of Manufacture: 1955-60
Zip Type:
• Open End (Separating)
Zip Teeth:
• Width: 5.9mm, #5
• Manuf. method: Die Cast
• Material: Zinc-based alloy
Zip Tape:
• Width:19mm
• Color: Olive Green
• Material: Cotton 100%
Zip Slider:
• Interlocking
• Manuf. method: Die Cast
• Material: Zinc-based alloy
Zip Retainer/End Box:
• Manuf. method: Die Cast
• Material: Zinc-based alloy
Zip Length: 60cm(+-5mm)
Various Purposes for Repair:
• L-2B early Model.......

Condition:
Zippers are NOS(New Old Stock) from 50s. But please note that there may be discoloration and slight rust on the metal part, slight discoloration and storage stains on the tape within the range that does not interfere with use.

Next re-stock is scheduled for the end of March! !