Exodus 38:9-12

Then he made the court on the south side; the hangings of the court were of fine woven linen, one hundred cubits long. There were twenty pillars for them, with twenty bronze sockets. The hooks of the pillars and their bands were silver. On the north side the hangings were one hundred cubits long, with twenty pillars and their twenty bronze sockets. The hooks of the pillars and their bands were silver. And on the west side there were hangings of fifty cubits, with ten pillars and their ten sockets. The hooks of the pillars and their bands were silver.