A copy of the head of Queen Victoria from her marriage portrait by Sir George Hayter (407165; Royal Collection), but with the wedding wreath of the original exchanged for George IV's regal circlet. Another version, now in a private collection, was mounted in a flexible gold bracelet by Kitching & Abud and given to Queen Victoria's Lady-of-the-Bedchamber, Elizabeth, Countess of Desart, for Christmas 1845 (RA VIC/ADDT/312/25).

John Simpson (1811-after 1871) was trained as a porcelain painter at the Derby porcelain factory before moving to London in 1845. He soon established a practice as a miniature painter specialising in works on enamel, and fulfilled the first of many commissions for Queen Victoria in that year. He is last recorded describing himself at the end of his career as a 'photographic artist' (1871 census return); the date of his death is not known.

Signed, dated and inscribed on the counter-enamel in red paint: Queen Victoria / after Hayter / by Simpson / 1846