The figure shows a 5′′  ×  8′′ sub-field from the right-hand side (mostly limb-side) penumbra, outlined in Fig. 1. The top row shows the 538 nm continuum, the 5380 COG velocity within the spine mask, the LOS magnetic field, the 5380 COG velocity within the inter-spine mask, and the 6301 continuum intensity. The bottom row shows the 5380 COG velocity, the 5380 line core velocity, the 6301 COG velocity, 6301 70% bisector velocity and the 6301 line core velocity. The velocity maps have been scaled individually to enhance fine structure. Maps shown represent original quantities and have not been processed with unsharp masking. Tick marks and small white dots are at 1′′ intervals.