Well preserved Antique Paper Manuscript from Mongolia
12 double sided pages plus the 3-disc device.
The manuscript is accompanied by
1) a circular diagram drawn one half on each of two folios, which together make a circle
2) set of 3 manipulative devices in the form of 3 circular discs of decreasing sizes that are to be place on top of the circle and fixed at the centre. These discs are free to rotate. The uppermost disc has a bow and arrow drawn upon it. This acts as a pointer in the calculations.
This is a valuable work from the point of view of the mathematics involved, the cultural aspect as well as the art. An absolutely fantastic acquisition!
There is some edge wear.
Size: 21 x 7 cm
Estimated to be from the late 1800s / early 1900s
Excellent for research.
Also included are some drawings on other subjects - may have been part of a larger thesis.