Wal Jack had an extensive range of correspondents throughout Australia and the world who often prepared extensive drawings for him. This detailed drawing is by Roy Field who swapped many photographs with Wal Jack. The drawing details the railways associated with the Commonwealth Portland Cement at Portland NSW. Details of Roy are included within this record.Demonstrates some of the correspondence that Wal Jack received from around the world and that of Roy Field.Drawing - pen and ink red and black on foolscap sheet of Commonwealth Portland Cement Works NSWOn rear in pencil and type, a note about Sandringham tram No. 51.letters, wal jack, tramways, drawings, roy field, portland cement nsw, railways