R.U.S.I. MAPS. Vol. LVIII (1-22). Fort Kinburn - Varna. 1. Chart showing approaches to Fort Kinburn on the Sea of Azov; circa 1855. 1:47000 approx. Scale bar of 5000 metres (= 107mm.). French. R.U.S.I. no. V 2.4. 470 x 620mm. 2. 'Survey of the approach to Fort Kinburn by the officers of HM...