Victorian Wooden Foundry Patterns

Two decorative Victorian wooden foundry patterns, circa 1900, stained and polished in the early 20th Century.  One  bearing alloy makers letters for Robert Hall & Sons, Bury, England (some of the letters are missing).  Obviously these would have shown in the cast.  

55cm & 56cm diam.

Robert Hall & Sons were specialist manufacturers for the textile weaving industry.  They made power looms for weaving fibres of all descriptions and at one point had over 500 employees.