Next time you're leaving your apartment at the Dakota, take a right down 72nd
to the Hotel Olcott, 27 West 72nd (George F. Pelham, 1925).  It has a new/old
marquise (by Historical Arts & Castings of Utah), but today I noticed the
limestone colonettes on the 1st/2nd floors, which are about 5 inches in
diameter.

These half-round columns (engaged) are smooth on the west side, but are
noticeably pitted and rough on the east side, with abrasion down  perhaps a
mm or two.  I assume that this differential weathering is, indeed, a weather
result, but:

1.  I thought our strongest "weather" was from the west, and,
2.  I have never seen such a disparity on a single piece of stone.

Tiny Tim used to live at the Olcott.

Christopher Gray