Each Apex received an individual name: 1 Igin, 2 Andras, 3 Ormis, 4 Arbas, 5 Quimas, 6 Caltis, 7 Zenis, 8 Temenisa, 9 Celentis. The etymology remains unclear, though some names were clearly Arab numbers. The Arabic figures reported by Gerber were reproduced almost everywhere with the greatest fantasy, as evidenced by various examples compared to the model's initial figure 4 (form imported by the Arabs at the end of the tenth century).
Georges Ifrah
Unknown date<div style="display: none;">Unknown date</div>
<ul><li>Georges Ifrah: <i>Histoire universelle des chiffres</i>. Seghers: 1981. p. 507, fig. 240
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<li>G. F. Hill: <i>The development of Arabic numerals in Europe (exhibited in sixty-four tables)</i>. Clarendon Press: Oxford, 1915</li></ul>