- Drude,O. s.n. [1900-05-24]|Drude,O. 10
- Drude,O.|Drude,O. s.n. [1899-08] 10
- Drude,O. s.n. [1900-07-08]|Drude,O. 9
- Drude,O.|Drude,O. s.n. [1890-08-03] 9
- Drude,O.|Drude,O. s.n. [1900-05-24] 8
- Drude,O.|Drude,O. s.n. [1881-08-06] 8
- Carl Georg Oskar Drude 7
- Drude,O.|Drude,O. s.n. [1893-07-02] 7
- Drude,O. & Naumann s.n. [1890-08-12]|Drude,O. & Naumann 7
- Drude,O. s.n. [1890-08-03]|Drude,O. 7
- Drude CGO 6
- Drude,O. s.n. [1919-04-21]|Drude,O. 6
- Drude,O.|Drude,O. s.n. [1892-08-10] 6
- Drude,O.|Drude,O. s.n. [1917-06-17] 6
- Drude,O. & Naumann & Schorler|Drude,O. et al. s.n. [1893-06-18] 6
- Drude,O. s.n. [1893-07-02]|Drude,O. 6
- Drude,O.|Drude,O. s.n. [1892-08-06] 6
- Drude,O. & Naumann|Drude,O. & Naumann s.n. [1890-08-12] 6
- Drude,O. s.n. [1899-08]|Drude,O. 6
- Drude,O. s.n. [1899-06]|Drude,O. 6
- Drude,O. & Naumann,Karl Arno|Drude,O. & Naumann,Karl Arno s.n. [1890-08-12] 6
- Drude CGO; Wirtgen FP 5
- Drude,O.|Drude,O. s.n. [1906] 5
- Drude,O.|Drude,O. s.n. [1888-08-14] 5
- Drude,O. & Naumann,Karl Arno|Drude,O. & Naumann,Karl Arno s.n. [1891-07-19] 5
- Drude,O. s.n. [1918-05-12]|Drude,O. 5
- Drude,O.|Drude,O. s.n. [1894-06] 5
- Drude,O. s.n. [1892-08-06]|Drude,O. 5
- Drude,O. & Schorler,B.|Drude,O. & Schorler,B. s.n. [1900-07-08] 5
- Drude,O. & Schorler,B.|Drude,O. & Schorler,B. s.n. [1900-09-02] 5
- Drude,O.|Drude,O. s.n. [1893-06-25] 5
- Drude,O.|Drude,O. s.n. [1889-05-18] 5
- Drude,O. & Schorler,B.|Drude,O. & Schorler,B. s.n. [1896-06-28] 5
- Drude,O. & Schorler,B.|Drude,O. & Schorler,B. s.n. [1896-08-05] 5
- Drude,O.|Drude,O. s.n. [1888-08-13] 5
- Drude,O. s.n. [1881-08-05]|Drude,O. 5
- Drude 4
- Drude,O. 4
- Drude,O. & Schorler,B.|Drude,O. & Schorler,B. s.n. [1898-06-02] 4
- Drude,O. & Schorler,B. s.n. [1893-06-11]|Drude,O. & Schorler,B. 4
- Drude,O.|Drude,O. s.n. [1885-08-23] 4
- Drude,O. & Schorler,B.|Drude,O. & Schorler,B. s.n. [1893-06-11] 4
- Drude,O. & Schorler,B. s.n. [1900-09-02]|Drude,O. & Schorler,B. 4
- Drude,O.|Drude,O. s.n. [1899-07-23] 4
- Drude,O. s.n. [1917-07-07]|Drude,O. 4
- Drude,O. s.n. [1915-07-10]|Drude,O. 4
- Drude,O. s.n. [1917-06-17]|Drude,O. 4
- Drude,O.|Drude,O. s.n. [1894-08-06] 4
- Drude,O.|Drude,O. s.n. [1918-05-12] 4
- Drude,O. s.n. [1898-07-02]|Drude,O. 4