Yard number 577, Pacific Shipper, launched 22nd December 1923. Doxford 580L4 engine.
Yard number 578, Pacific Trader, launched 20th February 1924, Doxford 580L4 engine.
Both for Furness Withy, both 420ft x 58 ft x 28.1 ft. GRT 6304, DWT 10,000.
Both sea trials 19th May 1924
The jib of the 100 ton steam crane can be seen on the quayside.