I'm absolutely not a piano nerd, but your question aroused my curiosity. The comparison chart within the following link -- http://www.chicpianos.com/steinway-new-york-vs-hamburg/?id=6 -- has me thinking it's a Hamburg Steinway because of the curved frame around the keyboard and the lack of a pedal plate.
Thank you for your inquiry. I'm going to kill it at my next trivia opportunity.