Jeff Koons "Balloon Dog (Orange)" in Seagram lobby. Photo: Lindsay Pollock

Peter Brant’s Jeff Koons’ sculpture, Balloon Dog (Orange) has departed pastoral Greenwich, Connecticut for Park Avenue. The reflective coppery-hued stainless steel pup is parked in the lobby of Mies van der Rohe’s Seagram Building at 375 Park Avenue, owned by real estate developer, collector and Brant pal Aby Rosen.

Art fans pause for a photo wtih the Koons installed in the Seagram lobby. Photo: Lindsay Pollock

The Koons has been installed on Park Avenue for about a month. It is surrounded by a black velvet rope. The sleek Philip Johnson designed lobby is open to the public.

The Balloon Dog is among the most desirable pieces from the artist’s 1994-2000 Celebration series. Hedge fund manager Steve Cohen owns a yellow version, which was installed on the MET’s rooftop in 2008.  Eli Broad owns a blue one and Francois Pinault has the magenta version. It is worth upwards of $20 million.

Brant hasn’t commented on whether the Koons is on loan, or has changed hands, or is for sale. Brant’s recent financial woes have been chronicled here and here. Calls to 375 Park Avenue weren’t immediately returned.

Read my May 2009 Bloomberg News story on Brant and his museum here.