Exodus 38:19

He made also the rings of the tabernacle of gold; and the rings of the court, and the rings for drawing out the veil above of brass.

And their pillars were four, and their sockets of brass four; their hooks of silver, and the overlaying of their chapiters and their fillets of silver.

Their pillars were four, and their sockets four, of bronze; their hooks of silver, and the overlaying of their capitals, and their fillets, of silver.