Yes, Nicanary, your surprise is well justified as it had not been for sale for a very long time.
As I recall it, John Leitch inherited the Bégot & Mazurié from his father many decades before I knew him as a fellow researcher at the Veteran Car Club in the 1980s.
Fine little car in a minimalist sort of way with a four-speed gearbox and wheel steering even in 1899. As the dealer says, small size means light weight - for the car if not for the owner!