Arms of "William Harvey, Comptroller for the Sheriff of London" (Burke, Sir Bernard, The General Armory, London, 1884, p.463): Or, on a chevron between three leopards' faces gules three trefoils (slipped) argent.
Apparently a difference of Harvey of Cotwalton, near Stone, Staffordshire: Or, on a chevron between three leopards' faces gules a crescent of the field, as borne by Sir James Harvey (d.1583), Lord Mayor of London in 1581-2, son of William Harvey, Gent., of Cotwalton, near Stone, Staffordshire, and father of Sir w:Sebastian Harvey (d.1621), Lord Mayor of London in 1618. (Burke, Sir Bernard, The General Armory, London, 1884, p.463). 
Re Cotwalton/Cott Walton/Walton-in-Stone, near Stone, Staffordshire: see  Collections for a History of Staffordshire, Vol.VII, 1904, p.211 [1]: "On  the  Quindene  of  Easter.    i8  James  I. Between  George  Wright,  knight,  complainant,  and  Humphrey  May, knight,  Chancellor  of  the  Duchy  of  Lancaster,  and  Judith,  his  wife, deforciants  of  the  rectory  of  Stone,  and  of  all  tithes  in  Stone,  Walton, Stoke,-  Darleston,  Aston,  Meyford,  Oldeton,  Cott  Walton,  Woodhouses, Modershall,  Kuerhall,  Spott,  Fullford,  Beech,  Stallingrton,  and  Normecott".
Similar arms were borne by John Harvey, Esq., (d.1718) of Old Buckenham, Norfolk, who married Elizabeth Houblon, a daughter of Sir w:James Houblon (1629-1700), of Winchester Street, City of London, and Leyton, Essex, MP for the City of London 1698-1700, merchant and a member of the Dyers’ Company. The grandfather of John Harvey, Esq., (d.1718) of Old Buckenham was William Hervey (1559-1662), Sheriff of the City of London, son of Robert Hervey, Comptroller of the Customs in the Port of London. (www.stirnet.com [/www.stirnet.com/genie/data/british/hh4bz/hervey10.php]). 
See File:The church of St Giles on the Hill, Norwich - C18 memorial (geograph 2063987).jpg The Church of St Giles on the Hill, Norwich, mural monument in south aisle to Sir Thomas Churchman (1702-1781), Mayor of Norwich in 1761. (Source: Farrer, Edmund, Church Heraldry of Norfolk, Vol 3 (1893) Lynn, Norwich, Thetford, Yarmouth, p.55)
Inscription (summary) For "Sir Thomas Churchman, Kt., Alderman of this City, chosen Sheriff, 1757; Mayor, 1761; he died Dec. 4, 1781, aged 79. Dame Rebecca Churchman his wife (widow of Charles James Pack, Esq., (1701-1735) of Prestwold, co. Leicester) 3rd daughter of John Harvey, Esq., (d.1718) of Old Buckenham, in this county, she died May 23, 1762, aged 59."

Heraldry
1: Argent, two bars and on a chief as many pallets sable (Churchman) (Burke, Sir Bernard, The General Armory, London, 1884, p.197, 3 variants, all apparently trying to express the same shield; Shown here appears to be: Argent, two bars sable on a chief of the last two pallets of the first) with inescutcheon of pretence: Or, on a chevron between three leopards' faces gules, as many trefoils (slipped) argent (Harvey) (Burke, Sir Bernard, The General Armory, London, 1884, p.463 "Harvey of London; William Harvey, Comptroller for the Sheriff of London, grandson of William Harvey of the same place; certified by Camden, Clarenceux")
(See Farrer, Edmund, Church Heraldry of Norfolk, Vol 1 (1885), p.57 [2]: BUCKEKNHAM, OLD. Slabs  on  the  Chancel  Floor: II.  On  a  chevron  between  three  leopard's'  faces  as  many trefoils  slipped  (Hervey ;  the  coat  mentioned  in  Blomefield, History of Norfolk,  i.  393, as  being  on  a  hatchment  of  this  family  is,  Or,  on  a  chevron between  three  leopard's faces gules as many  fleurs-de-lis argent,  for  Robert  Hervey,  Esq.,  who  died  September"  28th,  1744; and  Anne  his  wife,  who  died  April  12th,  1755.)