Portugal - Lisbon calendar

Although the year 2008 is almost over now, I'm really happy to have such card :) I had no idea about the existance of calendar cards, but I find it very interesting. I'm not sure, but it seems to me that these pictures of Lisbon correspond to the month on the calendar... I mean that for example the photo of tram was really taken in January, as there is some snow :) But in fact I don't have any further info about this card. I hope to receive more cards like this one in the future :)