Exodus 36:16 YLT

¹⁴  And he maketh curtains of goats' 'hair' for a tent over the tabernacle; eleven curtains he hath made them;

¹⁵  the length of the one curtain 'is' thirty by the cubit, and the breadth of the one curtain 'is' four cubits; one measure 'is' to the eleven curtains;

¹⁶  and he joineth the five curtains apart, and the six curtains apart.

¹⁷  And he maketh fifty loops on the outer edge of the curtain, in the joining; and fifty loops he hath made on the edge of the curtain which is joining the second;

¹⁸  and he maketh fifty hooks of brass to join the tent -- to be one;