Designers pattern book 1914-1936; Canvas Keys 1896-1946; Linen Keys 1907-1946; Tissue Keys 1910-1946; Unmarked Keys 1945-1973. The pattern, or key, books show the design name, full range of colourways produced and who bought the designs.
- This material is held at
- ReferenceGB 582 DB 6/1
- Dates of Creation1896-1973
- Physical Description40 volumes
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