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Savigny and Co of No.129, Pall Mall, London (John Savigny) At the Acorn & Crown, in Gerard Street, London (John Tessier Savigny) At the Halbert & Crown, St. Martin's Churchyard, London (Paul Savigny) No.67, St. James's Street, London (Savigny, Everill & Mason).
Razor and surgical instrument makers in business for approximately 150 years.
c1740 Trade Card reads "Paul Savigny Successor to the Late Widow How at the Halbert and Crown in St. Martin's Church Yard, London Makes Good Razors, Scizors, Lancets, Penknives, Pocket And Case-Knives and Forks, Cooks-Knives & Pruning Knives, Shagreen and Fish Skin Cases, Blades fitted up in Silver, All sorts of Surgeons Instruments & Fine Hones, at Reasonable Rates. N.B. Old Work Carefully Ground & Set." 
Annotations by Sir Ambrose Heal on c1740 Trade Card * :-
"J.H. Savigny, a famous maker of surgical & dental instruments of King Street, Covent Garden, published a finely illustrated catalogue in 1798 & died the same year. Compare later cards in A.H. collection of Savigny, Everill & Mason, 67 St. James St. removed from Pall Mall and King Street, Covent Garden. In London Directory 1793 is a John Savigny, surgeons' instrument maker at 129 Pall Mall. John Tessier Savigny, razor maker at the Acorn & Crown, Gerard Street, insured in 1726 with Sun Insurance Company."
Paul Savigny would appear to have died or retired from business about the year 1720 for in 1726 John Tessier Savigny was razor maker at the Acorn & Crown in Gerard Street. The Savigny family persisted in the trade through later generations.
1793 John Savigny, surgeons' instrument maker at 129 Pall Mall
1839 Savigny & Co. at 67 St. James's St
1851 Savigny & Co. at 67 St. James's St
Became Philp and Whicker.
See also Savigny, Everill and Mason.