a south australian company with registered office in steamship buildings, adelaide, and headquarters at morgan, formed in june 1919 by combining the river interests (only) of permewan wright, and gem navigation co., j. g. arnold's fleet from mannum, knox and downs from wilcannia and a. h. landseer. the fleet included the "invincible", "ulonga", "marion", "gem", "ada", "vega", "colonel", "oscar w.", "pevensey" and "australien", all of which were based in echuca. f. o. wallin joined the consortium in 1932. the company ceased trading in 1952 and was wound up in 1954.