With reference to the pyramids, here's an excerpt from one of my papers...
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Jehovah’s Witnesses today might be surprised at some of the auxiliary lines of evidence Russell used to “prove” that 1914 was going to bring about these sweeping, worldwide changes.
[Watchtower, May 1, 1903, p. 130-131; p3184 Reprints]
"When Uranus and Jupiter meet in the humane sign of Aquarius in 1914, the long-promised era will have made a fair start in the work of setting man free to work out his own salvation, and will insure the ultimate realization of dreams and ideals of all poets and sages in history."
[The Divine Plan of the Ages, 1905, end notes]
“THINGS YOU OUGHT TO KNOW AS CHRISTIAN BIBLE STUDENTS
DO YOU KNOW THAT…
— The Great Pyramid in Egypt is a Witness to all these events of the ages and of our day—testifying in symbols?
— The Pyramid's downward passage under "A Draconis" symbolizes the course of Sin? Its First Ascending Passage symbolizes the Jewish age? Its grand Gallery symbolized the Gospel age? Its Upper Step symbolized the approaching period of tribulation and anarchy, "Judgments," upon Christendom? Its King's Chamber the Divine Nature, etc., of the Overcoming Church — the Christ, Head and Body? Its Ante-Chamber the Correction in Righteousness of the "Great Company" etc.? Its Queen's Chamber those of Israel and the world who attain Restitution?”
[Russell, Studies in the Scriptures: Thy Kingdom Come, Series III, p. 342, 1897 edition]
"...this measurement is 3416 inches, symbolizing 3416 years.... This calculation shows A.D. 1874 as marking the beginning of the period of trouble...."
Later in the 1916 edition of this same publication, the text was changed to read…
"We find it to be 3457 inches, symbolizing 3457 years.... Thus the Pyramid witnesses that the close of 1914 will be the beginning of the time of trouble...."
The above measurement was the length of an interior passageway discovered inside the Pyramids. It has no reference in Scripture, but it’s interesting how this measurement suddenly and miraculously changed by 41 inches after previous prophecies went unfulfilled, just in time for this new interpretation given them by Jehovah.