No judge, or clerk of court, county clerk, county auditor, or any other county officer, shall be allowed to charge any honorably discharged soldier or seaman, or the spouse or domestic partner, orphan, or legal representative thereof, any fee for administering any oath, or giving any official certificate for the procuring of any pension, bounty, or back pay, nor for administering any oath or oaths and giving the certificate required upon any voucher for collection of periodical dues from the pension agent, nor any fee for services rendered in perfecting any voucher.