Oct 1973 Baltimore, Md Discw/dome/portholewindows/interiorLight. Noiseless, hovering, close by, huge

Three of us in my car, while coming from work saw a bright white light shile turning onto Moravia Rd. heading towards Belair Rd.  At the crest of the hill where the cemetary begins we stopped the car, and two of us got out to look at a disc shaped with a dome (typical UFO) object hovering noiselessly over the cemetary.  The object had several porthole windows and the inside had a yellowish light which was spinning from left to right.  I bit my lip to focus on that specifically.  The object was about 300 ft. in the air and about 500 ft. away from us and dead silent.  Cars were whizzing by but they couldn't see is because is was dusk and looking ESEast made it hard to detect anything.We watched for 5 or 6 minutes and then it started to move towards the bay and outer harbor area, made a loop in the distance and disappeared.
We spoke with this witness and found him to be quite credible.  He reports that he telephoned the Baltimore Police shortly after the sighting, and the female officer he spoke with reported that their department has received approximately 200 calls about the incident.  The wife of the witness also saw the object, and may submit a second report.  Also, the third witness, who now lives in California, may submit a report, as well.  PD