MB-30 Barge and Ship Unloader (1/87 scale) $10.00 Rated 0 out of 5 HO scale 3 sheets plus photos Wood framed steam powered waterfront unloader of the late 19th century. Typical of those found in lake ports, seaports and on river fronts. Based on field measurements of the unit located at Norwich, Conn as of 1962-1963. The unloader structure is close to the original with the bins freelanced. Add to cart