»International Patent Specifications«
Giant offer of approx. 900 original patent specifications. Original prints, no copies! Ca. 1900 up to about 1960. Probably all major companies as Zeiss Ikon, Voigtländer or Rollei as well as small companies and single persons. All phototechnical aspects are represented.
Estimate: € 1,000/2,000
US$ 1,200/2,400
Reserve: € 500/US$ 600

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