A silent,spinning daylight disc.

On a breezy summer morning in 1957 I was a nine year old boy looking for a lost wiffle ball in a large bush wich stood at then end of our driveway in those days.
I saw a bright white object through the limbs of the plant; thinking it was the ball I stood back for a better look when I realized the object was in the sky and descending into the large, fast moving clouds above me. As the object passed through the clouds  it changed from a glowing object to a brass-colored shraply defined disc.
It descended below the clouds and hung silently in the air spinning counter-clockwise.
I could see five black ports on the object's bottom. After a short time the disc tipped onto its edge and I could see the top also had five black ports.
After "dipping" one or twice the object flew away with a clearly heard "woosh". At no time was there any engine sound or sonic boom.
Witness indicates that the date of the sighting is approximate.  PD