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Figure 3: Independently Measured Ultraviolet-Visible Spectra of Victoria Blue B (Red), Victoria Blue R (Green), and Victoria Pure Blue BO (Blue)

Figure 3: Independently Measured Ultraviolet-Visible Spectra of Victoria Blue B (Red), Victoria Blue R (Green), and Victoria Pure Blue BO (Blue)

Figure 3 shows independently measured ultraviolet-visible spectra of three inks: Victoria Blue B (red), Victoria Blue R (green), and Victoria Pure Blue BO (blue).