Answer:
My second is performed by my first, and it is thought a thief by the marks of my whole might be caught.
During the 1800's these turned women into hourglasses and is becoming more popular again these days
What is round as a dishpan, deep as a tub, and still the oceans couldn't fill it up?
Something wholly unreal, yet seems real to I. Think my friend, tell me where does it lie?
A shimmering field that reaches far. Yet it has no tracks, And is crossed without paths.
I am black within and red without; with four corners round about. What am I?