The Department shall deny the registration of any brand which is identical to any brand previously registered, or which is easily altered from the brand of another. No brand shall be registered which is formed by representation of any letter, number or figure which has been previously registered, or which is a solid brand, or which is described as being on either side of an animal,
or composed of single letters or figures, or of more than three letters or figures. The location of the brand on the animal shall be considered as part of the brand, and no brand shall be registered which does not describe such location.