Actually, I think they pretty much do.

Anyone who wants to see the Twain poem, at least, can follow this link to
the catalog:
http://search.sothebys.com/jsps/live/event/EventDetail.jsp?event_id=27467;
then click on "BROWSE CATALOG."  The Twain items are nos. 15 and 16.

Oh, and by the way, I personally don't object to a touch of commercialism
here and there.  And god knows neither did Twain!

Peter Salwen
Salwen Business Communications