Exodus 36:10-12

King James Version

¹⁰ And he coupled the five curtains one unto another: and the other five curtains he coupled one unto another.

¹¹ And he made loops of blue on the edge of one curtain from the selvedge in the coupling: likewise he made in the uttermost side of another curtain, in the coupling of the second.

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.