undifferenced 
adjective Heraldry
(Of arms) not made distinct by a mark of difference.An eldest son would retain the difference until his father's death, when he would inherit the undifferenced arms....
- The Canadian heraldic system shares with the Scottish system the requirement that the undifferenced coat of arms is borne by one person at a time.
- The personnel of the 17th Tank Battalion, from which this organization descends, were in the old 305th Brigade and, therefore, adopted the undifferenced arms and crest of that Brigade.