While browsing around on Google Street View, I found this green box atop the old Berkley Fire Department, I am thinking it is a Denver, but I am not sure, here is the Streetview link for it: https://www.google.com/maps/@42.5023123,-83.1830778,3a,15y,290.55h,102.33t/data=!3m6!1e1!3m4!1s3gQ2EKcNR7ziB...