This is a really cool idea from Semperfli! Just like finding a Golden Ticket in Charlie and the Chocolate Factory. Check it out!
From Semperfli:
“At Semperfli we have something very, very exciting for fly tyers world-wide. Whilst we have been busy spooling your favorite fly tying materials we have been manufacturing some spools with special Golden labels hidden below the products. Yes, hidden world-wide behind our spooled fly tying materials there are hidden many Golden Spools, each with a unique magical code which will give the winner a $250 pack of some our best fly tying materials. Get to your local Semperfli dealer. Good Luck.”
Here are more details and the full rules: https://semperfli.us/gold