Developable helicoid

Model 68

Constructor:	Category:
C. Tesch, Karlsruhe	E VI 5; E VI 1

Description

Developable helicoid. Paperboard.

Showcase of this model is Case number 10

References

Schilling, Martin(Hrg.): Catalog mathematischer Modelle, Leipzig(Verlag von Martin Schilling) 1911, 7.Auflage, No.128. p. 129.