/usr/include/casacore/casa/Quanta/ is in casacore-dev 2.2.0-2.
This file is owned by root:root, with mode 0o755.
..
/usr/include/casacore/casa/Quanta/Euler.h
/usr/include/casacore/casa/Quanta/MVAngle.h
/usr/include/casacore/casa/Quanta/MVBaseline.h
/usr/include/casacore/casa/Quanta/MVDirection.h
/usr/include/casacore/casa/Quanta/MVDoppler.h
/usr/include/casacore/casa/Quanta/MVDouble.h
/usr/include/casacore/casa/Quanta/MVEarthMagnetic.h
/usr/include/casacore/casa/Quanta/MVEpoch.h
/usr/include/casacore/casa/Quanta/MVFrequency.h
/usr/include/casacore/casa/Quanta/MVPosition.h
/usr/include/casacore/casa/Quanta/MVRadialVelocity.h
/usr/include/casacore/casa/Quanta/MVTime.h
/usr/include/casacore/casa/Quanta/MVuvw.h
/usr/include/casacore/casa/Quanta/MeasValue.h
/usr/include/casacore/casa/Quanta/QBase.h
/usr/include/casacore/casa/Quanta/QC.h
/usr/include/casacore/casa/Quanta/QLogical.h
/usr/include/casacore/casa/Quanta/QLogical.tcc
/usr/include/casacore/casa/Quanta/QMath.h
/usr/include/casacore/casa/Quanta/QMath.tcc
/usr/include/casacore/casa/Quanta/QVector.h
/usr/include/casacore/casa/Quanta/QVector.tcc
/usr/include/casacore/casa/Quanta/Quantum.h
/usr/include/casacore/casa/Quanta/Quantum.tcc
/usr/include/casacore/casa/Quanta/QuantumHolder.h
/usr/include/casacore/casa/Quanta/QuantumType.h
/usr/include/casacore/casa/Quanta/RotMatrix.h
/usr/include/casacore/casa/Quanta/Unit.h
/usr/include/casacore/casa/Quanta/UnitDim.h
/usr/include/casacore/casa/Quanta/UnitMap.h
/usr/include/casacore/casa/Quanta/UnitName.h
/usr/include/casacore/casa/Quanta/UnitVal.h