Here is the image titled "In Occasionem" from the 1531 Augsburg edition of Alciat's emblem book.
I am a captured moment of time. I stand on a ball constantly turning.
I have wings on my feet and a razor in my hand.
You may grasp me by the lock of hair on my forehead
but the back of my head is shaved, so that once I take my leave,
I cannot be held.
Here is the same image from the Paris edition of 1534.
And "In Occasionem" from the Padua edition of 1621.
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and this image again by George Wither, another English emblematist, printed in 1634.