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S. Pulzer & Son Ltd
Europe: United Kingdom
overall: 212 x 135 mm
Booklet outlining the construction and use of the British Refracting Unit (BRU) including measuring phorias by Maddox test or Duplicating Prism method, retinoscopy, subjective and near tests, measurement of ductions, accommodation and convergence tests. Black and white illustrations of the unit, its accessories and a practitioner (possibly Eric Ebbage) conducting a test on a patient. Also advertisements for the Pulzone chair and the automatic arm bracket. 16 pages.
Gift of A. H. Rivron & Son Ltd, 2004