Vintage 1979 Penguin Music Box-Made in Japan

Vintage mother and baby penguin porcelain music box. Berman & Anderson of NY, made in Japan 1979. Wind up on base bottom and on/off switch on back. Very good condition. Measures 6 1/2"H x 3 1/2"W x 3 1/2"D. Unsure of song it plays. No original box.