Chart correction N19/23 — chart 55161

55161   2Ed.  03/19/11  LAST  NM  N15/23  N19/23 Add "X" topmark to buoy   41°15′05″N  36°27′03″E (9(43)23 Istanbul)

Source: NGA U.S. Notice to Mariners · edition: 2Ed. 03/19/11

Reference information — always verify against official Notices to Mariners before navigation.