Libya 1971 - Central Bank of Libya 10 Dinars Color Trial Specimen (Omar al-Mukhtar Portrait, Pick 37cts)
In this trial, particular attention was given to the interaction between the deeply engraved intaglio portrait and the multitone underprint. Omar al-Mukhtar’s likeness is rendered with dense cross-hatching and fine facial modeling, requiring precise balance between key plate pressure and background ink load to prevent tonal collapse or loss of detail at speed. Flesh tones, background hues, and ornamental fields were evaluated together to ensure legibility, contrast, and visual authority across the full note. Read more →