‘ALHENA’ 1941. On January 28 1941, the 4900 ton Dutch Steamer ‘Alhena’ sailed from Liverpool to the Mediterranean after being delayed in the Mersey Estuary for a week by dense fog. At 11p.m. the same evening she struck Pladdy Rock just north of South Rock, County Down off the coast of Northern Ireland. The ship was totally lost, but without loss of life. The mail was damaged but recovered. A two line ‘SALVED FROM THE SEA’ cachet has been applied to this cover from Walton-on-Thames to Jerusalem, Palestine.