There are three plaques attached to the pedestal that holds the needle. They read:
THIS OBELISK QUARRIED AT SYENE
WAS ERECTED AT ON (HELIOPOLIS)
BY THE PHAROAH
THOTHMES III ABOUT 1500 B.C.
LATERAL INSCRIPTIONS WERE ADDED
NEARLY TWO CENTURIES LATER
BY RAMESES THE GREAT
REMOVED DURING THE GREEK DYNASTY
TO ALEXANDRIA
THE ROYAL CITY OF CLEOPATRA
IT WAS THERE ERECTED IN THE
18TH YEAR OF AUGUSTUS CÆSAR B.C. 12.
THIS OBELISK
PROSTRATE FOR CENTURIES
ON THE SANDS OF ALEXANDRIA
WAS PRESENTED TO THE
BRITISH NATION A.D. 1819 BY
MAHOMMED ALI VICEROY OF EGYPT
A WORTHY MEMORIAL OF
OUR DISTINGUISHED COUNTRYMEN
NELSON AND ABERCROMBY
THROUGH THE PATRIOTIC ZEAL OF
ERASMUS WILSON F.R.S.
THIS OBELISK
WAS BROGHT FROM ALEXANDRIA
ENCASED IN AN IRON CYLINDER
IT WAS ABANDONED DURING A STORM
IN THE BAY OF BISCAY
RECOVERED AND ERECTED
ON THIS SPOT BY
JOHN DIXON C.E.
IN THE 42ND YEAR OF THE REIGN OF
QUEEN VICTORIA
1878