In 1977, all of the special people spent Halloween night at Studio 54 to celebrate Liza Minnelli‘s buzzy Broadway turn in The Act. Oscar Abolafia snapped this photo of a group of post-show revelers that included Andy Warhol (clutching a Playbill), Diana Vreeland, and Steve Rubell. The following year, Vreeland, then in the Costume Institute phase of her legendary career, joined Rubell to celebrate his 35th birthday and followed up with a thank you note that rather mysteriously enthused about his “adorable children.” The note and photo are among the Studio 54 memorabilia that will be auctioned tomorrow by Palm Beach Modern Auctions. In addition to photos from Rubell’s personal collection (including some Warhol Polaroids and the artist’s bronze dollar sign sculpture, estimated to fetch $30,000 to $50,000), there are V.I.P. drink tickets, party invitations, and a guestbook from the famed nightclub. The auction house has also studded the sale with some glam design pieces by the likes of Paul Evans, Vladimir Kagan, and Milo Baughman, whose sleek 1970s sectional comes with a revolving cocktail table: drink up and boogie down.