Chart correction N4/21 — chart 44260
44260 8Ed. 10/25/14 LAST NM N26/20 N4/21 Delete Beacon 64°40.9′N 24°19.3′E Substitute Depth 17.8 meters for 19 meters 64°19.3′N 21°36.2′E Add Buoy BYB, spar, double cone topmark bases together [Q130.3] 64°17.2′N 21°21.5′E Depth 24.5 meters 64°34.5′N 21°38.4′E (715(13154)18 Norrkoping; 34(285)20 Helsinki; SWE CH 422)
Source: NGA U.S. Notice to Mariners · edition: 8Ed. 10/25/14
Reference information — always verify against official Notices to Mariners before navigation.