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: 6.3mm
• Material: Aluminium
Zip Tape:
• Width: 20mm
• Color: Brown
• Material: Cotton
Zip Slider:
• Interlocking
• Brass-Dull Nickel Silver Finish
• with Bell Shape Puller
Zip Retainer/End Box:
• Press Process
• Brass-Nickel Silver Finish
Zip Length: 63cm

Various Purposes for Repair:
• G-1 Mil-J-7823(AER), Mil-S-18342 suits.....
Substitute Purpose for Repair:
• G-1 55J14.....