mysterysolved

35 photos tagged mysterysolved, from 1 member of Flickr Commons.

When were these photos taken?

6
1911
2011

 

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The last upload was October 2015.

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Identified! [Man with radio and antenna] (LOC)

from The Library of Congress

  • 3 older comments, and then…
  • oldoinyo said:
    Early radioastronomy gear?
  • Christian Shepherd said:
    Could be or it could be a Radio Direction Finder used for finding the direction or bearing a radio signal is coming from.
  • Teore said:
    Just a radio antenna wallpoper.com/images/00/37/96/14/radio-antenna_00379614.jpg
  • Arlen Breiholz said:
    Looks like a radio direction finder to me.
  • Ross said:
    Although the loop antenna is a different style, all the other equipment seems nearly identical to this H&E photo. Direction-finding is possible, but maybe just a DX-pedition.

Identified! [Group. Charles Francis Jenkins (2nd from left) showing his Mirror Drum Television Receiver] (LOC)

from The Library of Congress

  • 3 older comments, and then…
  • oldoinyo said:
    A lens, a slit--something optical.
  • Everyone Calls Me Dave said:
    The gentleman on the far right is unconvinced. (They seldom are.)
  • Art Siegel said:
    Maybe a projector of some kind. Maybe the round housing he has in his left hand houses the light bulb he's got in the other hand. That unit could go in the box and shine divided light up through the square hole to the mirror and lens.
  • swanq said:
    Great thought, Art Siegel . The guy doing the demonstration looks to be inventor Charles Francis Jenkins www.funfotos.com/charlesfrancisjenkins.html en.wikipedia.org/wiki/Charles_Francis_Jenkins
  • swanq said:
    The device being shown is a Mirror Drum Receiver for very early television. www.earlytelevision.org/jenkins_mirror_drum.html This H&E photo was used in a Popular Mechanics article (July 1928) included on the page linked above. The tube in his hand is a quartz light tube.

Identified! [Device that impresses the Great Seal of the United States on certain official documents] (LOC)

from The Library of Congress

  • 9 older comments, and then…
  • Pixel Wrangler said:
    This is The Great Seal of the United States.
    Shown are the die, the counter-die, and the press.
    The device is kept at the State Department.

    "These stand in the Exhibit Hall of the Department, [and are now] inside a glass enclosure which is kept locked at all times, even during the sealing of a document. The mahogany cabinet’s doors also are kept locked, and the press is bolted and padlocked in position except when in use." [1]

    More information, including photographs, about the history of the seal dating back to July 4, 1776, can be read at the State Department's Bureau of Public Affairs.
    [The Great Seal of the United States] The Great Seal in use today
  • bawdy kittens said:
    Pixel Wrangler Good answer Pixel. I thought it was some kind of hot air regulator.
  • Art Siegel said:
    another photo commons.wikimedia.org/wiki/File:Great_Seal_press_with_All...
  • Jon (LOC P&P) said:
    Thanks Pixel Wrangler for figuring out what this is. We'll update the catalog record. They may keep it locked up today but back then apparently it was not so secure.
  • stayawake68 said:
    To stamp a document.