Those old maps, some of us generate a bit of laughter especially when we mount them on the current cartographic tools, however if we consider how those maps were made in times when no one had even managed to fly, we became convinced of the cartographers of skilled.
This is the map of Central America, from Wytliest-Louvain of 1597, lol if you look at the center of Honduras (Fondvra), there are some curious aspects, such as the volcano in the center, which is currently off, The Bay Islands, the port Of Trujillo, the lakes of Nicaragua.
The next is the mount on Google Earth:
1. Scan the map
2. Straighten it or cut it, For this can use Picasa.
3 Import it from Google Earth (File / open), You can modify the transparency in the left panel to visualize it better.
4. Stretch it at the ends (the green corners)
5. Rotate it (the diamond on the left)