I created this collection using the cyanotype method. In this collection I used old stamps and photographed them and turned the photo into a negative with high contrast. I then printed it on transparent paper and printed the negatives again using chemical solutions, Fabriano paper and sunlight. The result is a collection of blue stamps. Each of these stamps is a souvenir of a certain time in history.Celebration of the 2500th anniversary of the founding of the Iranian Empire