Boston. Caption reads: photographer had to part the crowd to get the shot.
Looks like it was a double wish bone T and it knocked one of them off... It's laying on the side walk..... Nah not sure what that part is but it does favor a wish bone.
That might be a piece of the cab or body unless there were add-on wish bones that were flattened metal. Not sure but the left side of the wishbone on the T taking a nap on the sidewalk looks like it's disconnected from the axle.
What's lying on the sidewalk, bedsides broken glass, looks like two separate pieces.
Closeup--