Surgery
1601-1870
Dilator, mouth, probably Heister's, possibly 17th century, probably 18th century to c. 1870, steel
1700-1870
Dilators, mouth, probably Heister's, probably 18th century to c. 1870, possibly steel
Dentistry
1720-1780
Dental pelican, adjustable, Heister type, steel, Europe, 1720-1780
1894-1930
Dilator, mouth, Heister's by Down Bros., London, England, 1894 to c. 1930, plated steel
1925-1940
Heister mouth opener unsigned, nickel plated brass, Germany, 1925-1940
1870-1935
Dilator, mouth, probably modification of Heister's by Maw, London, England, probably c. 1870 to c. 1935, plated steel and probably plated lead
1801-1900
Dilator, mouth, possibly Heister's by White and Wright, Liverpool, England, 19th century
1600-1870
Dilator, mouth, probably Heister's, possibly 17th century, probably 18th century to c. 1870, probably steel
Dilator, mouth, Heister's, by Maw, London, England, c. 1870 to c. 1935, plated steel
