Unrecorded proof state of Antonio Lafreri's map of the Seven Churches of Rome.
The present example lacks the title and also has a significant amount of detail which is not present. In addition, overall, the plate has far more detail in the engraving work.
For example, the names of the churches and the crosses atop the churches are not shown. Also the statute of San Pietro and the 8 kneeling figures in front of him are not present in the foreground, at the steps of the Church of San Pietro.
In the bottom left corner, the farmhouse and field are far more elaborately rendered.
At the gate to Rome on the right side of the map, ther are 3 people and an animal entering the gate, whereas only 2 are shown in the Lafreri map.
There are many other differences.