In a message dated 12/14/2006 2:46:26 P.M. Eastern Standard Time, [log in to unmask] writes: Wow, incredibly prescient re: the damage of repeated intervention and the desire to maintain the natural weathering as a portion of the architect's aesthetic. Nice. I kinda doubt he woulda been as happy if he'd seen the condition of the stone 60 years after he said it shouldn't be cleaned. It's not an easy call, either way. Ralph -- To terminate puerile preservation prattling among pals and the uncoffee-ed, or to change your settings, go to: <http://listserv.icors.org/archives/bullamanka-pinheads.html>