| Ref No | WIA GC/1922 |
| Title | Steffen, Gustaf F., Steffen, Oscara to Warburg, Aby and Warburg, Mary 21/12/1905 |
| Writer | Steffen, Gustaf; Steffen, Oscara |
| Place1 | Stockholm |
| Recipient | Warburg, Aby; Warburg, Mary |
| Place2 | Hamburg |
| Date | 21/12/1905 |
| Format | manuscript, postcard |
| Contents | Christmas and New Year greetings |
Show related Persons records.
Persons
| Code | PersonName | Dates |
| DS/UK/258 | Steffen; Gustaf Frederick (1864-1929); Prof. Dr. | 1864-1929 |
| DS/UK/259 | Steffen; Oscara, neé von Sydow (1864-1956) | 1864-1956 |
| DS/UK/955 | Warburg; Mary, née Hertz (13/10/1866-04/12/1934) | 13/10/1866-04/12/1934 |