Insert 
in position:
54° 02′ 23.4″ N, 010° 39′ 49.4″ E
NM Archive for Chart: DK 171
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2012-112.
2012-110. 
Thurø Bund: Type of Seabed
Insert M (symbol J2) in position:
54° 02′ 18″ N, 010° 40′ 37″ E