Chart correction 39/23 — chart 55043
55043 2Ed. 10/19/96 LAST NM 25/23 39/23 (Plan A) Add Buoy Y, pillar, "X" topmark, Fl Y 3s with legend "Buoys (2)" [Q130.6] 40°27′41.4″N 27°42′17.1″E Buoy Y, pillar, "X" topmark, Fl(2) Y 4s [Q130.6] 40°27′36.4″N 27°35′08.4″E Buoy Y, pillar, "X" topmark, Fl(2) Y 4s [Q130.6] 40°27′41.3″N 27°34′56.9″E Buoy Y, pillar, "X" topmark, Fl(2) Y 4s [Q130.6] 40°27′32.2″N 27°35′24.4″E (20(102)23 Istanbul)
Source: NGA U.S. Notice to Mariners · edition: 2Ed. 10/19/96
Reference information — always verify against official Notices to Mariners before navigation.