One of the greatest treasures in the archives of the Welsh Industrial and Maritime Museum is the Hansen Collection, consisting of over 4500 negatives of shipping taken at Cardiff Docks between 1920 and 1975. Lars Peter Hansen, a native of Copenhagen, settled in Cardiff in 1891 and he and his third son Leslie established a photographic business in the docks; taking pictures of ships for sale to seamen and shipowners was an important part of their business. Following the retirement of Leslie Hansen in 1975, the museum purchased the negative collection. Its historical value cannot be overstated and this album is intended as a tribute to the Hansens, who through their work have bequeathed to Wales a pictorial record of shipping activity at the nation's premier port.