Well if you are looking for an occasion when
LvR and MvR were both flying Dr.I's together, there is the case of 30Oct17 when LvR was forced to land due to engine trouble in Dr. I 119/17 and MvR made an emergency landing in Dr.I 114/17 to provide aid to Lothar. 119/17 was OK but MvR totalled 114/17 in the process. The paint jobs on these aircraft are not my area of expertise. R.