model_creation_date 1880
model_size 11 x 10
model_weight 445
model_catalognum V 5c, 89
model_objectnum 97685-000
model_originalprize 7,50
model_since 02.12.1960.
model_since 02.12.1960.
The spindle cycloid has two imaginary and two real nodes that unite two interlocking surface surfaces. The circles shown are lines of curvature.