Stow describes London Stone as:
‘’standing in Walbrook, on the south side of this High Street, neere unto the Channell, is pitched upright a great stone called London Stone, fixed in the ground very deep, fastened with bars of iron, and otherwise so stronlglie set that if cartes do runne against it through negligence the wheeles be broken, and the stone itself unshaken. The cause why this stone was there set, the verie time when, or other mermorie thereof, is there none. ”