WOW! My first transport as a spotty* 16 year old was an NVT Moped. Bought brand new by my parents, it was chosen as it had a 2 speed gearbox to cope with the 70 mile round trip everyday, I was not allowed a motorcycle so sports mopeds were out and most importantly it was British*. In the first 6 weeks it spent 2 weeks at the dealer being repaired and the dealer told my father on the last visit (I was working at a supermarket shelf stacking to pay for the petrol to get me to college) that they thought they had sold the wrong bike as it could not cope with the mileage, and if it went wrong again they would take it back and sell us a sports moped. My younger brother was there and was sworn to silence so told me as soon as I got home! Less than a week later, after 4 return trips to college at exactly the speed where the gears changed the gearbox failed and I got a Suzuki A50P sports moped and I was so happy! I have not seen an NVT since until that picture.
Not surprisingly, the government website has no MOT info for VBF 857S so it has been off the road for many years, but might still exist in a shed somewhere as it has not been officially scrapped.