In 1913 the Mortimer collection was acquired by Colonel G.H. Clarke and given to the City of Hull. From 1929 the collection was displayed in the Victoria Galleries (part of Hull City Hall), as the Mortimer Museum. It was transferred to the Transport and Archaeology Museum on High Street in 1956. It now forms an important part of the collection of the Hull and East Riding Museum, and remains an important contribution to British prehistoric archaeology. The Mortimer collection contains over 66,000 provenanced pieces from barrows, and a further several thousands of un-provenanced surface finds.