Bibliotheek Rotterdam / Rotterdam Library:
Birza stoel/ Birza Chair (1927)
Bibliotheek Rotterdam / Rotterdam Library:
‘Eerste model’ stoel/ First Model Chair (ca. 1927)
Bibliotheek Rotterdam / Rotterdam Library:
Aluminium stoel/ Aluminium Chair (1942)
Bibliotheek Rotterdam / Rotterdam Library:
Aluminium stoel/ Aluminium Chair (1942)
Bibliotheek Rotterdam / Rotterdam Library:
Aluminium stoel/ Aluminium Chair (1942)