This is Moss Rose Pattern.
There were many manufacturers of this pattern.
It's lovely!
I have a set that I received from my Grandmother.

Moss rose has been made by many makers since the early 18th century. Early makers were some of the Haviland/Limoges potters as well as early English potters. It was made in porcelain as well as ironstone.
Your set is much later and, as you see made in Japan. I don't know that back stamp, the paper crane, but by the gold trim I think it's fairly recent, perhaps 1950's but perhaps even later.
Linda C