June, 1964; 9;00 PM: immense counter-rotating double domed craft only 100 feet above me

(Not sure of exact day in June of 1964, but it was early June) At 9PM I left a friends house from a Young Life meeting in the neighborhood of Rogers Forge on Hopkins Street (an upper scale row house community) to get some fresh air when I looked up into the sky.  About 100 feet above me was a huge hovering craft with a "Capitol" shaped dome on top and the same shape on the bottom separated by a ring.  It hummed as the top dome spun in one direction and the bottom in another.  It was as clear as day.  Each half of the craft had rows of lighted windows.  I had never heard of UFO's before, so there was no preconceived notion to create interpret anything in my mind.  Awestruck, I looked back into the house, where I saw a friend about to exit and called him to come see.  As he stood next to me and looked up, I asked him, "Do you see that?", pointing to the craft.  He answered affirmatively and described what I was seeing.  Thirty seconds later, it moved off at astounding speed directly in front of us.
Witness indicates that date of incident is approximate.  PD