Photographs album, Scientific trials of material for military wireless telegraphy

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Photographs of scientific instruments on boat, persons, communication trials, diverse material, measuring tools.

Circa 1917

Including a letter of congratulations for « les beaux résultats que vous avez obtenus »… (the great results that you obtained)

27 silver prints of the era, 13/18 cm (5.1/7 in) - 18/24 cm (7/9.4 in.)

Condition report :

Bibliography :

Provenance :

  • Items quantity:  1
  • Height in cm : 35 cm
  • Width in cm : 24 cm
  • Expertissim Reference: 2014070778