PROWL COP by Gregory Jones / MY PRIVATE HANGMAN by Norman Herries is Ace Books #D-147. Slight cover pull-back. small piece of text block has come unglued. VG+. All forms of  payment accepted. Will combine shipping for U.S. and International sales (using eBay International Shipping program only). Thanks. While you're at it, you should also take a look at my goodgirlart.com Vintage Paperback web site to see some great cover art.