I previously posted about a recent discovery in the Great Pyramid at Giza of new hieroglyphics discovered with robots specially designed to penetrate previously unreachable crevices. You can read about that in this article: “Hidden Hieroglyphics Discovered in the Great Pyramid at Giza.”
Luca Matiallo, an independent specialist in Egyptian writing, has claimed to identify the marking as number:
“The markings are hieratic numerical signs. They read from right to left, meaning 100, 20, 1. The builders simply recorded the total length of the shaft: 121 cubits.”
To read more about this theory, read this article in Discovery News or here at MSNBC.
