New Granada (proposed merchant flag, 1834)
The Republic of New Granada used a provisional flag based on the old flag of Gran Colombia for the first few years of its existence. In 1834, a new set of flags was proposed, these ones based on the flag of Cartagena, which had briefly served as the flag of the United Provinces of New Granada.
The proposed state flag was a plain red-green-yellow tricolour, but the merchant flag added an eight-pointed star and mixed up the red and green bars. One of the more inventive tricolours I’ve seen.