Exodus 36:17 DBY

¹⁵  The length of one curtain was thirty cubits, and four cubits the breadth of one curtain -- one measure for the eleven curtains.

¹⁶  And he coupled five of the curtains by themselves, and six of the curtains by themselves.

¹⁷  And he made fifty loops on the edge of the outermost curtain in the coupling, and fifty loops made he on the edge of the curtain in the other coupling.

¹⁸  And he made fifty clasps of copper to couple the tent, that it might be one.

¹⁹  And he made a covering for the tent [of] rams' skins dyed red, and a covering of badgers' skins above [that].