The model was created in the 2014 version and saved in an earlier 2011.
Also present is the OBJ format.
There are no third-party plug-ins all elements are named by their names.
Buy here:
https://www.de-light.ru/catalog/eichholtz/111533/?p=7&code=light&h=ab8924b7e0b697c9a5dedbc99f029e2d 
https://www.eichholtz.com/wall-lamp-gigi-111533 
Wall Lamp Gigi from a variety of transparent glass and metal cylinders of different lengths arranged in two tiers.