Name: Neoclassical spiral staircase 4
Formats: 3Ds Max 2015 OBJ
Units: Centimeters
Step Height: 17.5cm
Number of steps: 20 (it goes up 350cm)
Corona physical materials
Polys: 224647
Verts: 231359
Railings elements are instances.
unique names
More:
https://3dsky.org/3dmodels/show/neoclassical_spiral_staircase_3 
https://3dsky.org/3dmodels/show/neoclassical_spiral_staircase_2 
https://3dsky.org/3dmodels/show/neoclassical_spiral_staircase