Conmar had been keeping one of Major Zipper Brands since the name registered in 1934 to ended around middle or late 80s. They were used so often on US Military Clothing and Equipments from late 30s through 70s.
This Aluminium zipper is typical 50-60s style.
Dead stock from 50-60s!!

Manufacturer: Conmar Products Corp.
Era of Manufacture: 50-60s

Zip Teeth:
• Width: 6.2mm
• Material: Aluminium

Zip Tape:
• Width: 20mm
• Color: Brown
• Material: Cotton/Nylon

Zip Slider:
• Interlocking
• Brass-Dull Nickel Finish
• with Bell Shape Puller

Zip Retainer/End Box:
• Press Process
• Brass-Dull Nickel Finish

Zip Length: 56.5cm

Various Purposes for Repair:
• G-1 Mil-J-7823(AER), (G-8)Mil-S-18342.....