Velocity-corrected spectra of IC 418 (in brown), Tc 1 (in black) and HR 6334 (in red) around 3760 Å (left panel) and 4000 Å (right panel) where the atomic line identifications are indicated (in green). The expected positions (and FWHMs) of the C₆₀ features are indicated on top of the spectra. There is no evidence (additional absorption and/or emission) in IC 418 and Tc 1 for the neutral C₆₀ features at 3760, 3980, and 4024 Å.