Chart correction 1773 — chart 1633
Chart 1633 (INT 1417) [ previous update 1431/26 ] WGS84 DATUM Amend NAM 25 light-buoy to, Fl.Y.5s 53° 19´·39N., 4° 53´·45E.
Source: UKHO Admiralty Notices to Mariners
Reference information — always verify against official Notices to Mariners before navigation.