If you think of brazing the joint around the steel scabbard of a Napoleonic sabre on a bed of coke, then if that is a joint and not inlay, it would be easy. The very early history of gas welding is a bit of a mystery. Gas welding was done before pressurised oxy-acthetaline. I have tried to find unquestionable facts but have not found any so far on the net, which is not highly specialised. If the Victorians could provide gas street lighting then they could gas welding. Like Massai herdsmen with mobile phones you can be sure welding technology spread from its beginings. Like aluminium on weapons it is older than one thinks.
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