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%I #19 Mar 09 2022 01:13:15
%S 1,2,3,6,7,10,11,15,18,20,30,40
%N Numbers engraved on the 12 sides of an ancient dodecahedral rock crystal from the first century A.D.
%C The rock crystal is held at the Archeological Museum Patras in Greece, Inv. 1280.
%C The stone is a grave object of a richly buried boy from Patras, Greece. Maybe it was a token. What is unusual, however, is the sequence of numbers, which in other Dodecad finds is mostly the series of integers from 1 to 12. The care with which the numbers were engraved is also unusual. Maybe there is an arithmetic game or arithmetic puzzle behind it.
%D G. Platz-Horster, Antike Polyeder, in: Jahrbuch des Deutschen Archäologischen Instituts 132, 2019, 134 (with other references).
%H Angelos Chaniotis, <a href="https://doi.org/10.11588/propylaeumdok.00001865">A dodecahedron of rock crystal from the Idaean cave and evidence for divination in the sacred cave of Zeus</a>, In: Gabrilaki, I.; Tzifopoulos, Y. (Hrsgg.): Actes of the International Symposium 'Mylopotamos, from Antiquity to our Days'.
%H G. Platz-Horster, <a href="/A345251/a345251.pdf">Patras Arch. Museum Inv. 1280 </a>
%K nonn,fini,full
%O 1,2
%A _Helge Svenshon_, Jun 12 2021
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