> The 10- by 8-inch painting, now deemed a French “national treasure,” hung unnoticed for years above a hot plate in a 90-year-old French woman’s kitchen How m

> The 10- by 8-inch painting, now deemed a French “national treasure,” hung unnoticed for years above a hot plate in a 90-year-old French woman’s kitchen How many years did this woman remain 90 years old? That's the real mystery in all this.