That's a pretty cool' bench Jo. I'm slightly envious.
I used an old NGC torch exactly like yours for decades. I still have two of them (one still has most of the black enamel in the logo) and enough parts to build a third except for the body. When my local welding supply house was clearing out their old inventory, I bought out all the parts they had for those things. The one item I got that proved to be really worthwhile were the knobs. They tend to be a little fragile at the threads at the top and I promptly broke two right after getting the new sets. I switched over to using a Mini-Torch about 20 years ago when I started in a different shop. They insisted that my old hose wasn't just properly broken in, they were afraid it was broken down, so I got a new hose. I found that the NGC was very difficult to use with the stiff new hose so they bought me a new Mini-Torch. Works pretty good.
If you need a knob or anything for that torch and can't find it, let me know. I might be up for a trade if you need to get rid of one of those old benches.