I have looked at the Coffer in the context of the ancient Egyptian civilisation having examined the statue of Khasekhem at the Ashmolean Museum Oxford.
I published a picture of the statue in my monograph on the Grand Gallery with permission.
An inscription on the statue states northern enemies 47,209 with pictures of the slain at the feet of the king.
I wonder if this is an exaggeration like your post, but it does tell me that the ancient Egyptians had a counting system to base 10 before the Great Pyramid was built.
You mention presti-digit-ation:
There is clear evidence that the cubit of the pyramid was divided into digits. The corbels of the Grand Gallery divide the cubit into 7 palms, and the corbels in the niche of the Queen's Chamber divide the cubit into quarters with each quarter to 7/4 palms.
The palm was the width of 4 fingers, and the width of a finger is now known as a digit, so each quarter cubit was equal to 7 digits, so the cubit was divided into 28 digits, as apparent from rulers which have survived from later periods of Egyptian history such as the cubit ruler of Maya in the Louvre.
The internal diagonal of the Coffer is 4 cubits or 112 digits, and the internal area is equal to the area of a circle with a diameter of 2 and 1/2 cubits.
It turns out that the design height of the pyramid is equal to 112 x 2.5 = 280 cubits, which might be regarded as a coincidence but for the fact that a circle with a diameter of 280 cubits is equal to the triangular cross-section of the pyramid:
1/2 x 440 x 280 = 61,600 square cubits as area of pyramid triangle
22/7 x 280/2 x 280/2 = 61,600 square cubits as area of pyramid circle
The statue of King Khasekhem was a scale model unless the king was very tiny.
The Coffer was large enough to accommodate a man of normal stature, but it is a scale model of the size and shape of the Great Pyramid, as published on page 162 of my monograph in 2006.
Mark
Edited 1 time(s). Last edit at 08/18/2018 04:17PM by Mark Heaton.