The Clerk of the Supreme Court shall procure a seal and cause such inscription to be placed thereon as may be prescribed by the Supreme Court. Each clerk of the District Court shall procure a seal, and, under the direction of the Judge of the District Court, cause to be inscribed thereon the style of his office and the name of his County. Each County Clerk, County Treasurer, Register of Deeds, County Surveyor, and County Superintendent of Public Instruction, shall procure a seal, and, under the direction of the County Judge, cause to be inscribed thereon the style of his office and the name of his county. Said seals shall be sufficient and used for all lawful purposes until otherwise provided by law: Provided, That, until any of such officers shall have procured a seal, the signature of any such officer shall be sufficient for all purposes without a seal.