A set of 16 imperial standard weights by De Grave & Co of London, dated 1925.

Made for Northamptonshire County Council.

Each marked with indenture number: 5735

Dated portcullis marks and Royal ciphers: GvR, GviR, EiiR.

56, 28, 14, 7, 4, 2, 1 lbs.

8, 4, 2, 1, oz.

8, 4, 2, 1,  ½, dr.

In two fitted felt lined plywood cases.

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.