Identify This Postcard (Original War Photo)

I cannot identify this postcard (original military photo). What country. What period of history. Who made this card? Any information please.
Thanks

The constabulary.
CYKO Postcard Cabinet Card.
https://cabinetcardgallery.com/tag/cyko/

What is a "Cabinet Card" ?..............
https://en.wikipedia.org/wiki/Cabinet_card

Dating a cabinet card

Sojourner Truth sold cabinet cards such as this one, sold in 1870, to support her work.
When attempting to determine the date of creation for a cabinet card, clues can be gathered by the details on the card. The type of card stock or whether it had right-angled or rounded corners can often help to determine the date of the photograph to as close as five years. However, it has to be noted that these dating methods aren't always 100% accurate, since a Victorian photographer may have been using up old card stock, or the cabinet card may have been a re-print made many years after the photo was originally recorded.[3]

Your best bet for ID (timeline) would be approaching Antique Firearms experts

Looks South American to me.

Yes - perhaps Mexico in the revolutionary period.

Sorry, but cabinet cards are not postcards even though the example shown is from a site with "cabinet card" in its name. Cabinet cards are photographs mounted on heavy card, typically about 16x11cm (about 6.5x4.25 inches) overall.

These are known as Real Photographic Postcards (RPPCs) - printed from negatives, rather than the standard, mass-produced items.

The machine gun is a Maxim or Maxim-derivative, which doesn't really help since everyone and their mother used those.

It is unfortunate that the cabinetcard.com website muddies the waters by its own name. As hy-brasil and GeoffHa have noted, Archiguy's image is not a cabinet card, but rather a real photo postcard.

That said, a number of companies sold 3.5" x 5.5" photographic print paper for printing your own postcards in your home darkroom. Typically by the contact-print method from a full-size negative. I have some of my grandfather's photo equipment from doing this exact home darkroom process.

The Cy-Ko logo is one such example of photo paper. The down side of this particular logo is that it is one of the most common used over many years, so less help than might be possible from a smaller paper publisher. Several websites have lists of the logos. The Cy-Ko logo is usually listed as appearing 1904-1920.

Who made the card? The photographer and likely in very small quantity.
When/where? I agree with GeoffHa, it certainly has a Mexican border feel to it.

addition information:size 3.5"x5.5"

Thanks for the correction.

Looks very similar to the M1904 Maxim
https://en.wikipedia.org/wiki/Maxim...55208931.jpg

Not much to go on.
The hats and other weapons you can see don't seem to go with the many pictures you can find online when you search for 'Mexican revolution".

Looks like the home guard.

I might think maybe further South (America)??
Or pick any other revolution going on around that time.

Just my SWAG.
pat

https://www.britannica.com/event/Me...n-Revolution

1911 Mexican Revolution insurrectionists?

I am thinking slightly later ... perhaps taken by a U.S. soldier during the 1916-17 expedition against Pancho Villa in Texas, New Mexico, etc. The soldiers had cameras, took plenty of pictures, the card is in the US now, etc.

CyKo is the brand most dates listed are 1903 to 1919 or 1904 to 1920.

This is also a divided back card so must be past 1907 so range 1907 to say 1920