litterae septem: A B C D E F G
<p>recta linea septem; AC duo secet, AG quattuor, BD tribus: universus  novem
</p>
(proxime, mm) AC 78, AB 58-9, AF 48-9, AE 33-4, AD 52, AG 58-9, DG 9-10,  FG 8, DF 21, BD 23-4, CE 43-4
Mikołaj Kopernik
<a class="external free" href="https://la.wikisource.org/wiki/Pagina%3ANicolai_Copernici_torinensis_De_revolutionibus_orbium_coelestium.djvu/394">https://la.wikisource.org/wiki/Pagina%3ANicolai_Copernici_torinensis_De_revolutionibus_orbium_coelestium.djvu/394</a>