Exodus 36:17-19

American Standard Version

¹⁷ And he made fifty loops on the edge of the curtain that was outmost in the ^[a]coupling, and fifty loops made he upon the edge of the curtain which was outmost in the second ^[b]coupling. ¹⁸ And he made fifty clasps of brass to couple the tent together, that it might be one. ¹⁹ And he made a covering for the tent of rams’ skins dyed red, and a covering of ^[c]sealskins above.