The board of county commissioners of any county is hereby authorized and empowered to provide for photographic or photostatic recording of all instruments filed in the office of the register of deeds and in other offices of such county where said board may deem such recording feasible. The board of county commissioners may also provide for filing such copies of said instruments in loose-leaf binders. (1941, c. 286; 1971, c. 1185, s. 12.)