Normally we would probably think that filling a fountain pen with red wine a waste, but in this case, there is good reasoning behind it. the vineyard Casa Mariol, believe that by introducing their red wine as an ink is a good way of being noticed and we are inclined to agree.
According to the Casa Mariol, vineyard this why the pen is filled with wine;
We have filled this pen with our best cabernet sauvignon. It was send to our potential clients with pre order form. Because we know that business need more than ink.