Chart correction 1886* — chart 1890
Chart 1890 [ previous update 863/23 ] ETRS89 DATUM Insert the accompanying block, centred on: 57° 41´·0N., 4° 10´·9W. Wk17/24 II 2.9
Source: UKHO Admiralty Notices to Mariners
Reference information — always verify against official Notices to Mariners before navigation.