According to an article in a Bulgarian periodic, Narodna Kulture, (July 19, 1963) signed by R. Radzeff, it is intended, after pulling down the historical Bridge of Mustafa Pasha on the River Maritza near the Turkish border, to construct a new and modern one in its place. R. Radzeff, examining this suggestion which was rejected by the Bulgarian Ministery of Education and the Academy of Sciences, after judging the value of this bridge from artistic and historical points of view, mentions that it is not right to pull down the bridge. We are not in possession of the exact plan of the bridgc and also we do not know if there is any scientific study made on it in Bulgaria. So, although some information in hand is incomplete we hope these collected notes will be of great use to make this valuable work of art known to those wlıo are interested in history of architecture.