A Method for Documenting Hidden Structures on Shipwrecks: the case of Vasa and Warwick

As part of the programme for documenting and studying Vasa, a Swedish royal ship of 1628, raised from Stockholm harbour in 1961, the author was given the opportunity to develop and implement a method of documenting the hidden structure—the frames—of this three‐decker. The method proved transferable to work under water as tested on the wreck of the Warwick, a ship lost in Castle Harbour, Bermuda in 1619. This article describes the method.