1. Add Or 4284 Reference (shelfmark): Add Or 4284 Title: Compressing Oil Seeds to make Oil. Scope & Content: Compressing Oil Seeds to make Oil using a mechanical mortar and pestle powered by two bullocks. Inscribed on opposite page: ‘Compressing Oil Seeds to make Oil.’ Water-colour; 105 by 180 mm. Collection Area: Visual Arts Languages: Not applicable Date Range: c 1790 Extent: 1 Item