| 854 | VII.A3 | 1920 | 31 |
| | |
| Brouwer, H. A. – Delft. [ 1 fol. ] | |
| 855 | VII.A3 | 1923 | 31 |
| | |
| Carnegie Museum – Pittsburgh. [ 1 fol. ] | |
| 856 | VII.A3 | 1919 | 31 |
| | |
| Česjanov, N. – Lausanne. [ 1 fol. ] | |
| 857 | VII.A3 | 1924 | 31 |
| | |
| Geologický ústav Masarykovej univerzity – Brno. [ 1 fol. ] | |
| 858 | VII.A3 | 1923 | 31 |
| | |
| Institut Pasteur – Paríž. [ 1 fol. ] | |
| 859 | VII.A3 | 1923 | 31 |
| | |
| Katzer et al. – Sarajevo. [ 1 fol. ] | |
| 860 | VII.A3 | 1922 | 31 |
| | |
| Paläontologische Gesellschaft Wien – Viedeň. [ 1 fol. ] | |
| 861 | VII.A3 | 1921 | 31 |
| | |
| Pavlovič, P. S. et al. – Borski Rudnik. [ 1 fol. ] | |
| 862 | VII.A3 | 1919–1921 | 31 |
| | |
| Ruská akadémia vied (Rossijskaja akademija nauk) – Petrohrad, Sevastopol. [ 3 fol. ] | |
| 863 | VII.A3 | 1919 | 31 |
| | |
| Ukrajinská akadémia vied (Ukrajinskaja akademia nauk) – Kyjev. [ 1 fol. ] | |
| 864 | VII.A3 | 1923 | 31 |
| | |
| Veder, G. – Paríž. | |
| 865 | VII.A3 | 1921–1924 | 31 |
| | |
| Neurčená korešpondencia. [ 6 fol. ] | |
