1993, Nigel is ropewalking using a Pantin.
Almost certainly not. I first came across the Pantin in 2003 on a China expedition with long pitches and they hadn't been out long then. There were a couple of rope walking techniques that were based on using a Basic jammer, either on the foot, or at about knee level, with bungee to keep them in position. Can't tell what is being used in the film as the old VHS tape this was likely made from loses too much detail. One version was published in the early 1990's in the Caving Supplies catalogue and I did experiment with it. I found that on a long pitch, my fitness was the limiting factor and I took the same length of time to get up using frog as walkng. When rope walking I could be faster, but then had to pause to get my breath back!
I did buy a foot jammer made by Kong and based on their knock off of the Petzl Basic in around 1998. This attached to the foot in a similar style to the subsequent Petzl Pantin, so was clearly where evolution was heading at that point. This still had the safety catch, not present on the first Pantins, which I subsequently removed on my Kong version. I still have it, as it, like the Pantin is not PPE, but an aid to SRT.