oooo that cap looks ripe for the picking - it'd make a nice ebay piece (gumby made me say that)
Gumby told me that the top of that pyramid looks like its just been cemented into place, that its not one solid piece of Granite, which would mean it would just take a bolster and hammer to remove it.
Brucey, little tip for you when posting pics from other peoples sites here. You dont have to copy them over to your photobucket site, just right click on the pic, go down to properties then in the new window that opens copy the bit next to the bit that says "address: (url)"