Keywords: GBolland.jpg en Gerardus Johannes Petrus Josephus Bolland 1854-1922 Dutch philosopher professor at Leiden University before 1922 http //proxy handle net/10648/6702fe88-1ad9-102f-85b3-003048976d84 GaHetNa Nationaal Archief NL unknown photographer other versions PD-old-70-1923 PD-EU-anonymous Uploaded with UploadWizard Gerard Bolland Photographs uploaded by User Vysotsky |