September 1986. I had been to one or two flea markets. I had browsed through the "Official" Guide to collecting toys a couple years earlier. The newspaper contained an advertisement for a local toy show.
My search for a prop-jet 188 Electra like my long-lost toy had just begun. I came home with this one instead, the only plane on the tables as I recalled. Nikko Gangu brand (Toys Nomura - TN trade mark) 707 with the box. The box lid explains all the standard "actions" these toys performed, and it worked well.
The thing was probably around twenty years old then. That means I have owned it for over half of its life!