Chart correction 50/20 — chart 55150
55150 2Ed. 6/15/96 LAST NM 49/20 50/20 Add Buoy ODAS [Q58] Y, spherical, “X” topmark, Fl(3) Y 8s AIS 42°05.6′N 35°11.1′E (41(134)20 Istanbul)
Source: NGA U.S. Notice to Mariners · edition: 2Ed. 6/15/96
Reference information — always verify against official Notices to Mariners before navigation.