The board of county commissioners shall furnish to the county board of revision and its experts, clerks, and employees suitable office rooms at the county seat, and shall furnish the county auditor for his own office and the county board of revision all maps, plats, stationery, blank forms, books, supplies, furniture, and other equipment necessary for the proper discharge of their duties and the preservation of their books, records, and files. The maps, plats, stationery, blank forms, and other supplies and equipment used by the auditor shall, so far as practicable, be used also by the county board of revision.