Exodus 36:12

36:12 He made fifty loops in the one curtain, and he made fifty loops in the edge of the curtain that was in the second coupling. The loops were opposite one to another.
-World English Bible

Other Translation

36:12 Fifty loops made he in one curtain, and fifty loops made he in the edge of the curtain which [was] in the coupling of the second: the loops held one [curtain] to another.
-King James Version