The London-based art furnishing company Collinson and Lock was established in 1870 and quickly became a significant and successful business for over twenty-five years. Despite the absence of archival material, an investigation into the success of the firm can be undertaken by using a form of business analysis in combination with contemporary printed sources. By looking at the firm’s business strategy and processes, the characteristics of the products, and the nature of the client base and the marketplace, a successful analysis can be made to chart the significance of the firm and its products in the late-nineteenth-century furnishing trade. The article therefore interprets the contemporary material with an emphasis on the marketing and reception of their products to chart the significance, rise, and fall of this once successful partnership.