At the very most, the cabinet COULD be a TE, but the baffle board,driver and tweeter are not. The actual amp panel is not a TE either.
So, that leaves the rubber feet. Mmmmm....somehow I doubt it. If it was a TE, the seller would have put up more info, like model number, year and some close ups.
However, Airfix used to make amps.............obviously still do!!!