Exodus 38:17-20

Each post had a bronze base, and all the hooks and rings were silver. The tops of the posts of the courtyard were overlaid with silver, and the rings to hold up the curtains were made of silver. He made the curtain for the entrance to the courtyard of finely woven linen, and he decorated it with beautiful embroidery in blue, purple, and scarlet thread. It was 30 feet long, and its height was 7-1/2 feet, just like the curtains of the courtyard walls. It was supported by four posts, each set securely in its own bronze base. The tops of the posts were overlaid with silver, and the hooks and rings were also made of silver. All the tent pegs used in the Tabernacle and courtyard were made of bronze.