Early 20th Century enamel signs for Soy sauce and Japanese rice biscuits 'Osenbe', examples of the first advertising signs to appear in Japan.
These I found in a flea market in Tokyo but it is difficult to find antiques and collectibles in Japan due to the constant destruction that has been wrought upon the cities by fire, earthquakes and war. Plus in a society fixated on novelty, newness and technology, little importance is attached to the old.
In contrast, the past, as in culture, traditions and ceremony are of enormous importance and respected religiously. Hence the fascinating mix of tradition and advanced technology in symbiosis.