New American Standard Bible (©1995)
Now over the heads of the living beings there was something like an expanse, like the awesome gleam of crystal, spread out over their heads.

King James Bible
And the likeness of the firmament upon the heads of the living creature was as the colour of the terrible crystal, stretched forth over their heads above.

Darby Bible Translation
And there was the likeness of an expanse over the heads of the living creature, as the look of the terrible crystal, stretched forth over their heads above.

English Revised Version
And over the head of the living creature there was the likeness of a firmament, like the colour of the terrible crystal, stretched forth over their heads above.

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