Dang: I though this one was a “no-brainer” for those interested in Mexican history. Maybe you need to …. ahem… axe someone about it. Don’t all come Russian in with the answer now.
A copy of the first edition of Gods, Gachupines and Gringos to the first person to identify this:
The Mexfiles has never expected to turn a profit, but personal funds only go so far. Miscellaneous expenses (telephone, internet connection, subscriptions, spyware, hardware repair, etc.) run about 600 pesos (35 US$) a month, and donations are gratefully accepted. Please note that your donations are in Mexican Pesos (18 pesos to the US Dollar as of February 2019). A 25 US$ donation is 450 pesos.
The background of Mexican anti-clericalism and the "atheist" general who led the Catholic counter-revolution of the 1920s 128 pp., Editorial Mazatlán, 2012.
An oral history of the World War II experiences of Gilberto Bosques (1894 – 1997), Mexico 's Consul General in Marseilles, France, who saved tens of thousands from the Nazis. 36 pp. Editorial Mazatlán, 2007 $35 MXP (click the image)
mexfiles.net 
Pancho Villa’s brain!
Is it really his brain? if so holy cow. I have no idea but am curious as hell.
Autopsy remains from John F. Kennedy
Oh good Lord… who knows? To me, it looks like a dog’s breakfast served on a plastic tray by an alien hand… but who am I to know??? Richard, your challenges are beyond me.
A tlayuda.
This is your brain on… pizza ???
Huevos divorciados on a bed of human brains? I dunno. But I tried.
Trotsky’s brain?
Or Trotsky’s brain and heart? I think both were removed and weighed.
Why? Oh lord, now you’re into epistemology!