The Labyrinth on Folio 53 v
Originally I had intended to show the design on folio 53 v already in my previous post (see related posts, below). It can be seen as a mistaken attempt to the labyrinth on fol. 51 r. But then I took a closer look at it. And the result has prompted me to dedicate a separate post to this design. Fig. 1 shows the design on fol. 53 v.
The design on fol. 53 v was rejected, crossed out and overwritten with text. It is clearly recognizable a five-arm labyrinth with 7 circuits. Also the design of the side-arms is very similar as in the labyrinth on fol. 51 r.
As the labyrinth on fol. 51 r, also this labyrinth rotates anti-clockwise. In fig. 2 I have mirrored it, inscribed the Ariadne’s Thread and in parallel presented the pattern. The Ariadne’s Thread traverses the lines of the labyrinth in two places. These are marked with blue circles. I have assumed that these were still provisional auxiliary lines that would have been removed if the final version of this labyrinth had been completed.
The result is surprising. Segment 4 is not filled out by the pathway. The path on the innermost and the two outer circuits passes this segment and marks only the left side of the third and the right side of the fourth side-arm. In addition the main axis includes one superfluous axial piece of the path. The pathway leads into the center, and a second piece of the path in the center of the main axis leads from the center into a dead-end.
This design can be easily corrected such that there results a four-arm unicursal labyrinth as shown in fig. 3.
In order to achieve this, each of the two pairs of walls delimiting the pathway drawn in blue must be shifted against another until they come to lie one above the other. This results in the extinction of the fourth segment and of the central piece of the pathway with the dead-end on the main axis.
Figure 4 shows the new pattern and the four-arm labyrinth derived from it.
So, in the rejected five-arm design, a four-arm labyrinth is contained or hidden. The course of the pathway of this follows about the same principle as in the labyrinth on fol. 51 r. I am not aware of any existing labyrinth of this type.