Rudolf Oetker's 1951 Hamburg built BURG SPARRENBERG had been operated by Coloctronis as LIBERATOR COLOCOTRONIS between 1967 and 1973.

This photograph of LIBERATOR COLOCOTRONIS was taken passing Hoek van Holland inbound for Rotterdam from Takoradi shortly after dawn on a dull 27th July 1973.

She subsequently arrived at Hamburg on 30th July 1973 and was there sold to other Greek owners who renamed her ATHEN PROGRESS.

Berthing at Port Harcourt on 16th September 1975 with a cargo of cement loaded at Rostock, on sailing on 2nd October ATHEN PROGRESS suffered engine damage and was towed to Ferrol by the tug KORAL, arriving on 10th December. Her next move was to the breaker's yard.