The metal patterns from drawers in the Pattern room of the Edward Barnard workshops were selected to represent the models used in the manufacturing process. Drawers collected in their entirety are listed as "whole" but otherwise the contents were sampled. The percentage of the drawer material collected is given as a percentage of the total drawer content. Some drawers may contain a few large pieces while other could hold up to 200 smaller items.
The material is mostly undated but appears to be ca. 1840 - 1945. The titles below are derived from the labels on the drawers.