If you look closely, you can see that the railway lines were later drawn onto the map by hand: https://maps.arcanum.com/en/map/europe-19century-secondsurvey/?l

If you look closely, you can see that the railway lines were later drawn onto the map by hand: https://maps.arcanum.com/en/map/europe-19century-secondsurvey/?layers=158%2C164&bbox=258648.0583533829%2C6255504.645424236%2C267748.8420335867%2C6258705.445983678 https://maps.arcanum.com/en/map/europe-19century-secondsurve...