Exodus 38:17-20

The sockets for the pillars were of bronze, the hooks of the pillars and their bands, of silver; and the overlaying of their tops, of silver, and all the pillars of the court were furnished with silver bands. The screen of the gate of the court was the work of the weaver, of blue and purple and scarlet material and fine twisted linen. And the length was twenty cubits and the height was five cubits, corresponding to the hangings of the court. Their four pillars and their four sockets were of bronze; their hooks were of silver, and the overlaying of their tops and their bands were of silver. All the pegs of the tabernacle and of the court all around were of bronze.