So normal rubbish went to the combustible bins and the rest went into non-combustible bins.
Thinking that Japan was ahead of London time I just discovered how much of a twit I am. Good ol' wikipedia can never fail when it comes to trivial information as it states,
Woodbury, New Jersey was the first city in the entire United States to mandate recycling. Led by Rose Rowanin the early 1970s, the idea of towing a "recycling" trailer behind a waste management vehicle to enable the collection of trash and recyclable material at the same time emerged. Other towns and cities soon followed suit, and today many cities in the U.S. make recycling a requirement.
Then it says of Japan,
Massive government promotion campaigns were carried out in World War II in every country involved in the war, urging citizens to donate metals and conserve fibre, as a matter of significant patriotic importance. Resource conservation programs established during the war were continued in some countries without an abundance of natural resources, such as Japan, after the war ended.