Thomas Calderone who played a cop in the first two seasons found it and was so excited that he sent me some pictures from the real set, as well as the construction and ground map:
I thanked him and showed some more of miniature work, and then he got Carla Marie included into the Twitter conversation:
She is actually working in the Gotham props department and today was going to show my miniatures to the Art Department. I hope they'll like it! What a great honor!