Spirograph

Autor:

Alexei Kouprianov

Credit:

Praca własna

Krótki link:

https://www.plwiki.pl/b/e098b

źródło:

Wikimedia Commons

Wymiary:

3008 x 2000 Pixel (1192514 Bytes)

Opis:

Spirograph, a plastic toy used to draw curves(hypotrochoids). Picture taken from a specimen produced and sold in the USSR (ОСТ 6-19-417-80 and 14МО.390.319, article НК-9) and kept in author's private collection.

Licencja:

CC BY 2.5

Warunki licencji:

Creative Commons Attribution 2.5