Passing through Collaroy, I stopped to grab a hamburger for lunch today and parked in front of a mower shop. As I was returning to my car on a whim I went into the shop and asked the youngish guy in attendance if he'd ever heard of King mowers. Came the reply: "Yep, two strokes on a plastic deck. Good little mowers. Ran really well."
My next question was if he happened to remember the distributor: "Yep, Parklands Trading. Still in business. Import Tanaka products."
Given his apparent age, I was quite surprised that he knew this but he said he's been in the mower business since 1991, which just happened to be the year that I bought my King mower.
So, I'll now see if somebody at Parklands can help me with information about the manufacturer. Fingers crossed.