a) digital copy
The reason I chose this page is that it is the very first page of the main text.
The reason I chose this page is that it is a folded page which should be shown as an opened format so that it is plausible for one to see the whole information of the drawing, but it is not possible to see the hidden part through the digital copy.
b) physical book
The physical book from the library is much newer and tidier than the digital copy from the internet.
c) physical properties
The book is very well protected with an extra transparent book cover and has almost no crease.