A set of three Imperial standard Avoir weights by De Grave of London, for Lancashire County Council, dated 1906.

5, 10, & 20 lbs.

Indenture number: 2757.

Stamped with Royal Ciphers and Portcullis date marks.

5 lbs: 10.5 x 6.5 x 5.5 cm.

10 lbs: 13 x 6.5 x 5.5 cm.

20 lbs: 16 x 10.5 x 9 cm.

De Grave of London was established in the 18th century, circa 1767, by Charles De Grave and produced weights, scales and measures. From 1817 to 1844 the business was known as De Grave & Son, and was located at 59 St. Martin’s-le-Grand, London. From 1817 to 1844, the firm was known as De Grave, Short & Co., and from 1845 onwards, De Grave, Short, Fanner & Co. 1851 De Grave, Short and Fanner exhibited at the Great Exhibition, London. From 1890 the firm was located at 13 Farringdon Road, London. The firm became part of the Avery organisation in 1922.