I have available a Campagnolo Delta brakeset.  They’ve been in my storage 25 plus years.  I am missing one of the covers, but they are available new for about $75.  Overall condition is near pristine.  There is one small scratch, about 1 mm to the right of the Campagnolo logo that is mostly invisible under most light conditions.  Other than that no other scratches.  Original pads installed.   Beautiful finish overall and the white upper rubber gaskets are like new.