Although this ca 1950s Soviet Russian spoon looks like sterling silver, I believe it to be the special silver plated white metal known is Russia as "melhior". This is an egg spoon whose bowl, front and back, is plated with 24k gold. The handle is beautifully twisted and is curled under at the end.
The spoon is 5 3/4" ( 14.6 cm) long. The back has hallmarks. It is in excellent condition with almost no wear of the gold.
Item ID: Russian Silver Plate Teaspoon