I got this guide when I strolled The Gates in February 2005. Amazing. The lanyard I bought at the little store they had set up in Central Park. These would be a nice keepsakes. The book has explanations of various areas in Central Park. Great shape. The lanyard is in very cool condition, the finish on the metal looks distressed but is the way they came, Jeanne had a hand in everything produced. 
Please look at all the photos and ask questions before bidding. Sold As Is, No Returns