I have a very nice all original Remington 521-T .22 Target Rifle. It was manufactured in 1964 and has no serial number. It has the original Lyman 57RS rear peep sight, and globe front sight. Receiver has original groves for mounting a scope. Also has the original Remington detachable box magazine. The stock is in great condition, no cracks, just normal scraches. Does have a small dent on left side from peep sight screw. Has 98% original blue and perfect bore. Shoots perfect and is a real tack driver. More pictures available if needed.