john in nc

I've got a Benelli and would like some help learning more about it - the numbers "121" are stamped near the trigger guard (assume model)- there are (4) stars stamped near the barrell (assume choke?) - it was imported by Heckler and Koch in Arlington, VA 22201 - on the barrel is stamped " Beneli Arms SPA - Urbino, Italy, Cal 12 CAM 70 - the stock is wooden - can anyone help in directing me to more info and understanding the value? Thanks