Many countries have issued stamps and/or cancellations through their postal service to celebrate Postcrossing. Russia was the latest and I was quite happy to connect with Olga to arrange a swap via the Postcrossing Forum. She lives is Novosibirsk and attended several of the launching ceremonies. The card shows a view of her hometown's business center. I must say of all the issues this one is my favourite. Do you have one you prefer over another?