Chart correction 13/22 — chart 54403
54403 4Ed. 06/14/86 LAST NM 11/22 13/22 Add Buoy Y, pillar, "X" topmark, Fl Y 3s [Q130.6] 37°15′17″N 27°21′52″E (44(143)21 Istanbul)
Source: NGA U.S. Notice to Mariners · edition: 4Ed. 06/14/86
Reference information — always verify against official Notices to Mariners before navigation.