eBay

This 7 torches are used and some are missing

Air/Oxy Aluminum Green Valve Wheel For 3A, 3B, 3C, 3H, 6B & 8R Torches - National

Fuel/Gas Aluminum Red Valve Wheel For 3A, 3B, 3C, 3H, 6B & 8R Torches - National

can either be fix or use for parts

here is the link where you can buy the parts

https://www.mountainglass.com/National-Aluminium-Green-OXY-Valve-Wheel