A Seven Dwarfs postcard printed in Japan by Lyric Card. It's marked with "© The Walt Disney Company", which dates it to at least post-1986. The Japanese text あけまして おめでとう ございます。 means "Happy New Year."
On the back of the card, 年賀 represents "New Year". It indicates to post office workers that it is a new year's greeting card.
Special thanks to Takahiro Mizuno for translating the Japanese text.