Exodus 36:11

9The length of one curtain was twenty and eight cubits, and the breadth of one curtain four cubits: the curtains were all of one size.

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

11And 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.

12Fifty 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.

13And he made fifty taches of gold, and coupled the curtains one unto another with the taches: so it became one tabernacle.