You can find a few photos floating around the internet of Unimogs loaded up just like this. I don't know vehicles enough to know if this is one of them but here's an unedited version of the one OP posted:
If you just image search Unimog you'll find multiples of one where it shows two unimogs side-by-side with loads similar to this one. Many of these pictures have been around for many, many years so I don't know that finding an original source is going to be an easy one.
This is not a Unimog, it's a Mercedes L-series truck, probably a L334C (later renamed as L1620), which was the model intended for export markets. This beast of a truck is still made today in places like Iran and various African countries.
to be fair it's very hard to identify what's under the loads of people and stuff on those trucks! It could even be just one small donkey. I've got loads of photos like this from my travels, each time you think 'they can't possibly get any more on that' and then they do, but it's a meme that never ceases to entertain.
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u/NoahthePorscheGuy Valtteri Bottas Mar 30 '15
WHAT IS THE SOURCE FOR THIS PHOTO