Reference

The three bugle horns in the arms of the Orange Free State carry significant heraldic symbolism. These bugle horns are linked with the House of Orange and serve as a badge representing the heritage and connection to the House of Orange. This reference is a nod to the influence and legacy of the Dutch settlers and the historical ties with the Dutch royal lineage.

The image of the Orange Free State arms is explicitly embellished with three bugle horns, positioned to symbolize vigilance, conquest, and the readiness to protect the state and its values. The horns are typically depicted as blue (Azure) bugles, garnished and stringed with red (Gules), on a silver (Argent) background.

For a visual representation, you can view one version of this emblem here.

Source: Flags of the World