Abstract: A tamper-proof odometer having an odometer register including a plurality of sequentially driven odometer dials carried on a common shaft with a pinion gear supported on an individual bracket disposed between each adjacent pair of dials to engage gears formed as part of each dial of an adjacent pair. A protective cover for the odometer register comprising a shield supported on each of the brackets with all shields forming collectively a partial barrier cover over the odometer register dials exposing only the register readout numbers.