Text from /www.raremaps.com[1]:

"The map was the product of Saxton's survey of England, which he commenced in 1574. Despite the arduous and groundbreaking nature of the surveying work, the first plates were already being made in 1574 and the work was complete in 1578. Some have suggested that Saxton relied on John Rudd's earlier surveys to speed up the process. The products of that survey, including the present map, originally appeared in Christopher Saxton's Atlas of the Counties of England and Wales (1579), the first English county atlas. That atlas was made possible through the sponsorship of Queen Elizabeth and William Cecil, Lord Burghley, Elizabeth's chief adviser. Thomas Seckford, who commissioned the survey from Saxton, is honored on this map with the inclusion of his coat of arms including his motto "Industria Naturam Ornat." "

Royal arms of Queen Elizabeth I above, arms of Thomas Seckford below. For heraldry of Thomas Seckford see: Monument in Great Bealings Church, Suffolk, erected in 1583 (when aged 67) by Thomas Seckford (a benefactor of Woodbridge) to his parents Thomas Seckford (died 1575) and Margaret Wingfield (died 1557). Thomas Sekford filius regiae majestati a libellis supplicum per annos 25 observantiae et pietatis ergo posuit aetatis suae 67 Anno Dni 1583. Thomas Seckford, the son, was a Master of the Court of Requests for 25 years. Arms:

• Central shield, quarterly of 4: (The Topographer and Genealogist, Vol.1, 1846, "Carlford Hundred, Suffolk", p.551 [2][3])
  • 1: Ermine, on a fess gules three escallops argent (Seckford) (Burke, Sir Bernard, The General Armory, London, 1884, p.910, with escallops or)
  • 2: Argent, a fess gules between three bugle-horns sable furnished or (Hunter/Venour) (Metcalfe, Walter C., ed. (1882). The Visitations of Suffolk made by Hervey, Clarenceux, 1561, Cooke, Clarenceux, 1577, and Raven, Richmond Herald, 1612, with notes and an appendix of additional Suffolk Pedigrees. Exeter: W. Pollard, p.64[4])
  • 3: Chequy or and vert (Hackford) (Burke, 1884, p.438)
  • 4: Paly of six or and gules, a chief ermine (Genney) (Burke, 1884, p.393 "Genney of Norfolk")