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Showing 21 - 40 of 41 for search: 'Willem de Sitter', query time: 0.04s
Digital object Available
Date: 1918-04-10
Archival Call Number: 20-565
Document Type: Autograph Postcard Signed (AKS)
    Digital object Available
    Date: 1918-04-10
    Archival Call Number: 20-566
    Document Type: Typed Transcript of Postcard (TTRP)
      Digital object Available
      Date: 1919-12-01
      Archival Call Number: 20-569
      Document Type: Autograph Letter Signed (ALS)
        Digital object Available
        Date: 1919-12-01
        Archival Call Number: 20-570
        Document Type: Typed Transcript of Letter (TTRL)
          Digital object Available
          Date: 1920-11-04
          Archival Call Number: 20-571
          Document Type: Autograph Letter Signed (ALS)
            Digital object Available
            Date: 1920-11-04
            Archival Call Number: 20-572
            Document Type: Typed Transcript of Letter (TTRL)
              Digital object Available
              Date: 1920-11-29
              Archival Call Number: 20-573
              Document Type: Autograph Letter Signed (ALS)
                Digital object Available
                Date: 1920-11-29
                Archival Call Number: 20-574
                Document Type: Typed Transcript of Letter (TTRL)
                  Digital object Available
                  Date: 1921-09-06
                  Archival Call Number: 20-577
                  Document Type: Autograph Letter Signed (ALS)
                    Digital object Available
                    Date: 1921-09-06
                    Archival Call Number: 20-578
                    Document Type: Typed Transcript of Letter (TTRL)
                      Digital object Available
                      Date: 1924-12-10
                      Archival Call Number: 20-582
                      Document Type: Autograph Letter Signed (ALS)
                        Digital object Available
                        Date: 1924-12-10
                        Archival Call Number: 20-583
                        Document Type: Typed Transcript of Letter (TTRL)
                          Digital object Available
                          Date: 1924-12-01
                          Archival Call Number: 20-584
                          Document Type: Printed Text (REPT)
                            Digital object Available
                            Date: 1933-04-03
                            Archival Call Number: 20-585
                            Document Type: Autograph Letter Signed (ALS)
                              Digital object Available
                              Date: 1933-04-03
                              Archival Call Number: 20-586
                              Document Type: Typed Transcript of Letter (TTRL)
                                Digital object Available
                                Date: 1933-08-29
                                Archival Call Number: 20-587
                                Document Type: Typed Letter Signed (TLS)
                                  Digital Object Unavailable
                                  Date: 1918-04-25
                                  Archival Call Number: 81-827
                                  Document Type: Autograph Letter Signed (ALS)
                                    Digital Object Unavailable
                                    Date: 1918-04-10
                                    Archival Call Number: 82-768
                                    Document Type: Autograph Letter Signed (ALS)
                                      Digital Object Unavailable
                                      Date: 1918-02-12
                                      Archival Call Number: 83-542
                                      Document Type: Autograph Letter Signed (ALS)
                                        Digital Object Unavailable
                                        Date: 1916-06-01
                                        Archival Call Number: 87-953
                                        Document Type: Autograph Letter Signed (ALS)

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