Steward patent telemeter
- maker:
- J H Steward
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License'Steward' Patent Telemeter, No.286, in case, by J. H
Science Museum Group
© The Board of Trustees of the Science Museum
'Steward' Patent Telemeter, No.286, in case, by J. H. Steward, Strand, London, England, 1908-1912
