It's always possible to ask the seller if they eventually do ship internationally unless they spesificly states in the listing that it's not the case. The local-shipping-only option seems to be rather default, and most sellers with listings of local-shipping only will actually ship internationally if you just ask them.
Just remember to specify to the seller, if he/she agrees to ship internationally, that he/she sometime needs to give permission for you to place any bid. If I had done that, the card in the example you specify would have sold for a completely different price.
Thank you for bringing this valid point to our attention. The person in the example informed me he did not wish to send anything abroad. I am aware that buyers can be allowed to bid (even when they are based abroad).