photomechanicalprint

101 photos and 629 illustrations tagged photomechanicalprint, from 3 members of Flickr Commons.

When were these photos & illustrations taken?

1890

2017

Where were these photos & illustrations tagged?

None of these photos & illustrations are geotagged.

Related tags

Tags that often appear on the same photos & illustrations:

Members using this tag

National Library of Medicine 722 photos & illustrations
The Library of Congress 7 photos & illustrations
National Library of Ireland on The Commons 1 photo / illustration

Photos & Illustrations

Show photos & illustrations photos (101) illustrations (629)

A selection of photos & illustrations tagged photomechanicalprint:

Loading photos & illustrations…

Enable JavaScript to browse these photos & illustrations, or see them on flickr.com.

See more on flickr.com →

Recent uploads

The last upload was July 2025.

Happy is the man whom the Muses love... from National Library of Ireland on The Commons uploaded July 2025
Getting it together: DAS agenda for the 80's from National Library of Medicine uploaded January 2025
You should recondition your lab & office furniture: call 496-4247 and save from National Library of Medicine uploaded January 2025
Self-recognition: recent insights into the deepest puzzle in immunology from National Library of Medicine uploaded January 2025
HIV/AIDS information: putting the pieces together from National Library of Medicine uploaded December 2024
"Al cumplir los 17, me entere que tenia el HIV y tambien que todo el mundo lo puede contraer": Peter Zamora, con resultados positivos del HIV from National Library of Medicine uploaded December 2024
III International Conference on AIDS from National Library of Medicine uploaded December 2024
AIDS is scary, but a zit is real, right? from National Library of Medicine uploaded December 2024
"Most people think HIV is only a problem in big cities: unfortunately, I was one of those people" : Krista Blake, HIV positive from National Library of Medicine uploaded December 2024
Immunopathogenic mechanisms of HIV infection from National Library of Medicine uploaded December 2024
Mobilization of community resources in the response to the HIV epidemic from National Library of Medicine uploaded December 2024
World AIDS day 2000: NIH commitment to global AIDS research from National Library of Medicine uploaded December 2024
Serving people living with AIDS: Ryan White CARE Act 1998 from National Library of Medicine uploaded December 2024
Ryan White CARE Act: 9th anniversary from National Library of Medicine uploaded December 2024
Combat complacency: HIV/AIDS prevention saves lives from National Library of Medicine uploaded December 2024

Conversations

Here’s a selection of the conversations happening on these photos & illustrations:

[Lyn Peris Pass, Llanberis, Wales] (LOC)

from The Library of Congress

Kest Schwartzman said:
article on the process of photochrom: en.wikipedia.org/wiki/Photochrom "A litho stone is coated with a thin layer of purified bitumen dissolved in benzene. A reversed half-tone negative is then pressed against this light-sensitive coating and an exposure in daylight made (taking from 10–30 minutes in summer, to several hours in winter). The bitumen hardens and becomes resistant to normal solvents in proportion to the light. The coating is then washed in turpentine solutions, removing the unhardened bitumen. It is then retouched in the tonal scale of the chosen color to strengthen or soften the tones as required. Each tint needs a separate stone bearing the appropriate retouched image, and prints are usually produced by at least six, and more commonly from 10 to 15 tint stones.[4]"
Siaron James said:
two Ls - Llyn Peris (as on image) not Lyn Peris
Ryan (LOC P&P) said:
Thanks for catching this typo, siaronj. We'll make the correction the next time we update the record.

El porvenir de ellos esta en sus manos: siga diáriamente su tratmiento de la alta presión de la sangre

from National Library of Medicine

Чанван Сюн said:
1

Retroviruses: where did they come from, and where are they going?

from National Library of Medicine

deanspic said:
Interesting