Every article of foreign origin entering the United States must be legibly marked with the English name of the country of origin unless an exception from marking is provided for in the law. The marking must be legible. This means it must be of an adequate size, and clear enough, to be read easily by a person of normal vision. The marking should be located in a conspicuous place. It must be where it can be seen with a casual handling of the article. Marking must be in a position where it will not be covered or concealed by subsequent attachments or additions. The marking must be visible without disassembling the item or removing or changing the position of any parts. The article should be marked as indelibly and permanently as the nature of the product will permit.