I have one of the Casascius coins (this one, to be exact) that contains an error: the small lettering on the hologram reads "Casacius", without the second 's'. I'm a inexperienced when it comes to all things bitcoin, as well as all things collectable.
I understand that one can sell these coins for a premium over their BTC value. Where can I put the coin up for sale relatively safely? I'm willing to sacrifice getting the highest possible price in order not to get scammed.