Instructions
Go to the city of Aurora or Brightwall, or head to the Bowerstone Market. These are the only areas in the land of Albion that offer pawnshops.
Enter the pawnshop. Each pawnshop is located close to the entrance of the town and is marked with a sign.
Walk up to one of the pedestals in the shop. Scroll through the list of items you own using the D-pad.
Press "A" when the red potion is shown on the pedestal. Look at the box that opens at the bottom of the screen to see how many potions you have. If you want to sell any, press "A" again.