The flag is documented from 1218. The crown was added to the ram in 1512. The ram was originally rampant with only the rear left hoof on the ground, but in the 1940s this was changed to the salient position with both rear hooves on the ground.
Most mass-produced flags are commonly 150x90cm / 5x3' or 90x60cm / 3x2', which will often vary from the official size ratio. We now offer a custom-manufactured official size option for our many of our flags.