NRS-15447 | Calculations for the estimate of the Sydney Harbour Bridge

These volumes are comprised of the calculations for the estimate for the construction of the Sydney Harbour Bridge as submitted to the Public Works Committee.The volumes are signed by Louis M. Roberts, Designing Engineer and John J. C. Bradfield, Chief Engineer.The numbers 3G/186-187 appear on the front endpapers of items in this series. The significance is unknown. It was possibly a location symbol when the records were active or in storage. Custody HistoryThese records were handed to the Archives Authority of NSW on 11 June 1968 by the Bradfield family. They were apparently archival estrays.

本批次档案卷宗包含提交给公共工程委员会的悉尼海港大桥（Sydney Harbour Bridge）建设概算所用的全部计算资料。本批卷宗由设计工程师路易斯·M·罗伯茨（Louis M. Roberts）与总工程师约翰·J·C·布雷德菲尔德（John J. C. Bradfield）共同签署。本系列档案的部分文件前衬页上标注有编号3G/186-187，其具体含义暂未明确，推测可能为档案存续或存储期间使用的位置标识。【保管沿革】本批档案于1968年6月11日由布雷德菲尔德家族移交至新南威尔士州档案管理局（Archives Authority of NSW），据悉该批档案原为失散归档档案。