SNR G350.1−0.3 with regions used for the expansion measurement indicated. Top panel: as in Fig. 5. Bottom panel: difference image between the early and late epochs. We use a symmetric logarithmic color scale to highlight features on small scales, with blue corresponding to the late-epoch emission being brighter, and red being the opposite. For the main image, we smoothed the data with a Gaussian kernel of 1″, while in the inset we show the region of the bright clump smoothed with only 0.5″.