Dereddened spectrum of a single spaxel over the inner shell (offsets from position of central star indicated) around the wavelength of the H I Paschen Jump, showing the four continuum sections used to measure the magnitude of the jump. The calculated H I, He I and He II nebular continua are shown by coloured dotted lines. The spaxel has an extinction, c, of 0.186, an He⁺/H⁺ value of 0.094, an He⁺⁺/H⁺ of 0.014, [Cl III] N_e 7520 cm⁻³ and a PJ T_e of 7790 K. A continuum of 3.3 × 10⁻¹⁸ ergs cm⁻² s⁻¹ Å⁻¹ had to be added to the summed theoretical continua of H I, He I and He II in order to match the total dereddened continuum flux. Given the displacement from the central star (of 5.0″), it is unclear if this is scattered continuum from the central star (either instrumental or intrinsic to the nebula), or instrument scattered light or residual sky background; the simplest option of a flat continuum was therefore chosen.