  The first FCC-ee final focus quadrupole prototype has been designed,
manufactured, assembled and tested at warm. The prototype is a single aperture
quadrupole magnet of the CCT type. One edge of the magnet was designed with
local multipole cancellation, whereas the other was left with the conventional
design. An optimized rotating induction-coil sensor was used. A technique was
developed to take into account field distortions due to the environment of the
test and distinguish them from magnet effects, demonstrating an excellent field
quality for the prototype.
