Two of these buttons sold at auction in 2023; one for $76.89 and the other for $199.95.  One also sold for $15, but that was a fixed price sale and was snapped up quickly.

All three of the buttons that sold were orange.  It looks like the colors on your button have washed out due to sun exposure.  This would likely decrease the value.

Due to the condition issues, it might could sell for around $75-$100 at auction, perhaps less.  The $200 sale was for a button from Frank Mentzer's personal collection and sold for the minimum bid.