Ala. Code § 25-7-14

Any union or association of workingmen may adopt and use a label or device for the purpose of designating and distinguishing any goods, wares, or merchandise or other product of the labor of the association or union of workingmen or of a member or members of the association or union. A copy of any such label or device may be filed in the office of the Secretary of State upon payment of a fee of $1.00.