251 Wongrowitz (1:100 000 Karte des Deutschen Reiches (Generalstabskarte), ark. poj. /1870 - 1944/)
| Wongrowitz | Wągrowiec | ±1893 | 600 dpi | |
| obraz oryginalny / original image |
| Wongrowitz | Wągrowiec | ±1893 | 600 dpi | |
| obraz scalony / composite image |
| Wongrowitz | | 1904 | 600 dpi | |
| Wongrowitz | | 1918 | 300 dpi | |
| Wongrowitz | | ±1930 | 600 dpi | |