http://www.bhsusa.com/manhattan/upper-east-side/4-east-66th-street/coop/17462018
http://www.bhsusa.com/manhattan/upper-east-side/4-east-66th-street/coop/17462018#floorplan
Only 40 foot frontage on central park though(http://www.autoadmit.com/thread.php?thread_id=3736663&forum_id=2#34244504)