Ernst-Jan de Vries:
198_006
Ernst-Jan de Vries:
198_015
Ernst-Jan de Vries:
198_002
Ernst-Jan de Vries:
198_008
Ernst-Jan de Vries:
198_005
Ernst-Jan de Vries:
Subsidy mills
Ernst-Jan de Vries:
Runde
Ernst-Jan de Vries:
198_014
Ernst-Jan de Vries:
198_012
Ernst-Jan de Vries:
198_013
Ernst-Jan de Vries:
Symmetry axis
Ernst-Jan de Vries:
Zeche Zollverein
Ernst-Jan de Vries:
Zeche Zollverein
Ernst-Jan de Vries:
Zeche Zollverein | explored
Ernst-Jan de Vries:
Zeche Zollverein
Ernst-Jan de Vries:
Zeche Zollverein
Ernst-Jan de Vries:
Zeche Zollverein
Ernst-Jan de Vries:
221_005
Ernst-Jan de Vries:
221_006