W R Milburn & Son were recorded from about 1894 to about 1955. At some time between 1955 and 1966 the firm changed its name to Milburn & Son (Brampton) Ltd. They were not recorded after the mid 1960s.

The firm sold Pegamoid cartridges under their own name and cartridges under the names the "Don", the "Milburn", the "M S B" (standing for Milburn & Son of Brampton), the "Rex" and the "Noxall". Pegamoid were waterproof cartridges.

Pete