Chart correction N20/23 — chart 44100

44100   9Ed.  03/29/14  LAST  NM  N19/23  N20/23 Add Danger circle "Unexploded ordnance" [Kp]   54°25.6′N  13°45.3′E Buoy Y, spar, "X" topmark [Q130.6]   55°07.2′N  14°03.1′E (15(40)23 Hamburg; 852(15761)21 Norrkoping)

Source: NGA U.S. Notice to Mariners · edition: 9Ed. 03/29/14

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