Chart correction N4/21 — chart 44180
44180 7Ed. 3/8/14 LAST NM N2/21 N4/21 Add Designation “B” to pilot station symbol 58°36.7′N 17°27.7′E (801(14646)20 Norrkoping)
Source: NGA U.S. Notice to Mariners · edition: 7Ed. 3/8/14
Reference information — always verify against official Notices to Mariners before navigation.