On the show "The West Wing" various cast members are seen wearing a small round/octagonal lapel pin specifically in the 5th season. What is it?

You are bidding on an Authentic Presidential Seal White House Lapel Pin worn by Presidential staff. It is from the Bush administration. It is probably one of the most highly sought Presidential jewelry owing to its elegance. The lapel pin measure approximately 3/4 inches in diameter and depicts the bold, beautiful Presidential Seal in its full range of colors on a blue background. Surrounding the Presidential Seal is a thin gold filigreed edging. The lapel pin is New, Mint, and comes sealed in a plastic wrapping to protect its beauty.