I just found this from http://quotes.jehovahswitnesses.com/1874.htm
I knew there was piramideology involved in their early hocus-pocus but it seems they could not even keep that lie a consistent one!!!:
*** Thy Kingdom Come (copyright 1891) (1904 edition -- Millennial Dawn, vol 3) p.342 ***
[Note: not available on 1993/1995/1999 CD-ROM]
So, then, if we measure backward down the "First Ascending Passage" to its junction with the "Entrance Passage," we shall have a fixed date to mark upon the downward passage. This measure is 1542 inches, and indicates the year B.C. 1542, as the date at that point. Then measuring down the "Entrance Passage" from that point, to find the distance to the entrance of the "Pit," representing the great trouble and destruction with which this age is to close, when evil will be overthrown from power, we find it to be 3416 inches, symbolizing 3416 years from the above date, B.C. 1542. This calculation shows AD. 1874 as marking the beginning of the period of trouble; for 1542 years B.C. plus 1874 years AD. equals 3416 years. Thus the Pyramid witnesses that the close of 1874 was the chronological beginning of the time of trouble such as was not since there was a nation -- no, nor ever shall be afterward. And thus it will be noted that this "Witness" fully corroborates the Bible testimony on this subject...
*** Thy Kingdom Come (copyright 1891) (1910 edition -- Studies In The Scriptures, vol. 3) p.342 ***
[Note: not available on 1993/1995/1999 CD-ROM]
So, then, if we measure backward down the "First Ascending Passage" to its junction with the "Entrance Passage," we shall have a fixed date to mark upon the downward passage. This measure is 1542 inches, and indicates the year B.C. 1542, as the date at that point. Then measuring down the "Entrance Passage" from that point, to find the distance to the entrance of the "Pit," representing the great trouble and destruction with which this age is to close, when evil will be overthrown from power, we find it to be 3457 inches, symbolizing 3457 years from the above date, B.C. 1542. This calculation shows AD. 1915 as marking the beginning of the period of trouble; for 1542 years B.C. plus 1915 years AD. equals 3457 years. Thus the Pyramid witnesses that the close of 1914 will be the beginning of the time of trouble such as was not since there was a nation -- no, nor ever shall be afterward. And thus it will be noted that this "Witness" fully corroborates the' Bible testimony on this subject...