SOVIET FLAG

Well... this is the flag of USSR:

And according to Wikipedia:

The flag's design was legislated in 1955, which gave a clear way to define and create the flag. This resulted in a change of the hammer's handle length and the shape of the sickle.

So:

• The ratio of width to length of the flag is 1:2.
• The hammer and sickle are in a square with sides equal to 1⁄4 of the flag's height. The sharp tip of the sickle lies in the center of the upper side of the square, and the handles of the hammer and sickle rest in the bottom corners of the square. The length of the hammer and its handle is 3⁄4 of the square diagonal.
• The five-pointed star is inscribed into a circle with a diameter of 1⁄8 of the flag's height, the circle being tangent to the upper side of the square.
• The distance of the vertical axis of the star, hammer and sickle from the hoist is 1⁄3 of the flag's height. The distance from the upper side of the flag to the center of the star is 1⁄8 of the flag's height.

And here's its State Emblem: