Appearance of a radial ﹩({\boldsymbol{f}}\propto \hat{R})﹩ polarization pattern as viewed from i = 0° (left) and i = 30° (right). In the inclined image, the foreground emission (i.e., Y < 0) is ignored. As the inclination angle is increased, the polarization angle “folds” up with the jet, as indicated by the black arrows. This is a purely geometric effect. The vertical axis of the image—where polarization remains radial—is referred to as the spine, while the regions to the sides are known as the limbs. The exact edge of the jet is the “true limb” (TL) and is shown as a black dashed line.