993.1210.1: Diaphragm Fitting Rings, 1910-1950

Additional Images

993.1210.1: Diaphragm Fitting Rings. Nine diaphragm fitting rings, sizes 50-90mm in case
Image No. 2683 Nine diaphragm fitting rings, sizes 50-90mm in case; Photographer: Helen Kingsley

Object Description

Nine diaphragm fitting rings, sizes 50-90mm, set in a "Deco style" Bakelite box. Gold lettering on lid 'MADE IN U.S.A. Ramses T.M. REG. U.S. & CAN. PAT. OFF. FITTING RINGS'.

Object Classification

Accession Number: 993.1210.1
Collection: Gynaecology/Obstetrics/Contraception
Date: 1910-1950

Object Dimensions

  • Length: 11.3 cm
  • Height: 10.3 cm
  • Width: 11 cm

Object Parts

  • a) Box lid
  • b) Box base
  • c) Fitting ring '90'
  • d) Fitting ring '85'
  • e) Fitting ring '80'
  • f) Fitting ring '75'
  • g) Fitting ring '70'
  • h) Fitting ring '65'
  • i) Fitting ring '55'
  • j) Fitting ring '60'
  • k) Fitting ring '50'

Object Materials

  • Bakelite,
  • rubber

Acquisition Detail

  • Manufacturer: Julius Schmid Inc.
  • History of Use: The diaphragm fitting rings were used as trial sizes, testing for comfort and fit before a CAP was prescribed.