70's porcelain vase and plate

I found a little Japanese hexagonal porcelain plate with the most beautiful pair of Mandarin ducks at a flea market some years ago. The old uncle who sold it to me said that he bought it from Isetan at Havelock Road in the late 70s. I remembered that Isetan quite well as it was one of the first few Japanese department stores in Singapore back then. And just 2 months back at another flea market, I came across a matching vase with the same design, just as well-made and just as beautiful. A lovely moment of serendipity again ! It was like reuniting two Mandarin ducks.