Locations of the two CSPNe and their dynamical masses (primary is shown in red, the secondary in blue) in the HRD compared to stellar evolutionary tracks. Black lines indicate H-shell burning post-AGB tracks from Miller Bertolami (2016), dashed, light-blue lines post-RGB tracks from Hall et al. (2013), purple lines stripped star evolutionary tracks from Götberg et al. (2018), and in pink post-EHB evolutionary tracks from Dorman et al. (1993). The magenta line indicates an evolutionary track of a He-shell burning stripped post-early AGB star. The gray dashed-dotted lines indicate radii of 0.1, 1, and 10 R_⊙.