flat transparent disk rolling end over end, across the clear blue sky, northeast to southwest

it was a clear day not a clould in the sky, i was playing in the front yard, when something caught my eye. stright up above the house. i noticed a abject rolling across the sky, end over end. at first i thought, i was seeing a nasa spacecraft that was in trouble. i was a kid, and it did not dawn on me until a few seconds later. we don't have flat round spacecraft. the object was moving from northeast to southwest. it was a flat round disk, rolling end over end, like it was out of control? from my postion it was the size of a quarter, if held above your head against the blue sky. the disk when it rolled, looked transparent, and when the side angle rolled into wiew it almost disapeared. i remember cuping my hand to block the sun as it moved further to the southwest it had A glair on it and then out of sight.
Date is approximate.  PD