Exodus 38:7-11

7And he put the staves into the rings on the sides of the altar, wherewith to bear it; he made it hollow with planks.

8And he made the laver of brass, and the base thereof of brass, of the mirrors of the ministering women that ministered at the door of the tent of meeting.

9And he made the court: for the south side southward the hangings of the court were of fine twined linen, a hundred cubits; 10their pillars were twenty, and their sockets twenty, of brass; the hooks of the pillars and their fillets were of silver. 11And for the north side a hundred cubits, their pillars twenty, and their sockets twenty, of brass; the hooks of the pillars, and their fillets, of silver.