From the Port Lockroy base.  Two unused cards are available (Grades: 1, $19).  We also have one more, mailed from Port Lockroy with an Antarctic stamp and Port Lockroy postmark.  To be honest, we don’t really want to sell this because we can never get another one.  But we will list it at a terrible price in case someone wants it more than we do (Grade: 1, $319).