HISTORY OF PHOTOGRAPHY Cover of the booklet "The mail through Piccioni Viaggiatori" by the French photographer, chemist and inventor Prudent Dagron (17 March 1819 - 13 June 1900). It describes the first practical application of microfilm: the process developed and patented by Dagron during the siege of Paris in 1870-71 to send copies of messages, on film to collodion, attaching them to the tail feathers of the pigeons travelers who came fly over the German lines, between Paris and the offices of the French government in Tours and Bordeaux. During the five months of siege hundreds of thousands of such films were sent. Paris, Typographie Lahure, 1871

Francia

title: PIGS TRAVELERS

subject date: 2019-02-06

caption: HISTORY OF PHOTOGRAPHY Cover of the booklet "The mail through Piccioni Viaggiatori" by the French photographer, chemist and inventor Prudent Dagron (17 March 1819 - 13 June 1900). It describes the first practical application of microfilm: the process developed and patented by Dagron during the siege of Paris in 1870-71 to send copies of messages, on film to collodion, attaching them to the tail feathers of the pigeons travelers who came fly over the German lines, between Paris and the offices of the French government in Tours and Bordeaux. During the five months of siege hundreds of thousands of such films were sent. Paris, Typographie Lahure, 1871

category: HIS

copyright: © Fototeca Gilardi

copyright status: Copyrighted Work

country: Francia

credit: Fototeca Gilardi

instructions: Per info: Fototeca Gilardi - t. 02 3931 2652

Creation date: 2019-01-11 16:05:12

object name: 73367

priority: 0

multiplying price: 1.00

pricing: default

continent: Europa

image century : XIX

image epoch: Ottocento

licence: RM

subject century: XIX

subject epoch: Ottocento

technique: Copertina

id: 42023

file name: FSNgilardi_73367.jpg

keywords

history of photographyBooktreatyFranco-Prussian warsiege of Pariscommunicationtelecommunicationspigeonshoming pigeonmilitaryballooninnovationnewsinnovatorinventionsmicrofilmFranceFrench

Dimensioni in pixel: 1961 x 3071

Dimensioni file jpeg: 2438KB

Dimensione file non compresso: 17643.25 KB

Dimensioni di stampa (300dpi): 16.6 x 26 cm

Image size: 1.961 x 3.071 pixels

File size: 2,38 MByte

Uncompressed file size: 17,23 MByte