.45 Auto Euro Marking on 1911 Barrel?

[cslinger]

So I have this run of the mill Colt 1911 but it has one oddity that I think about from time to time but haven't been able to get an answer for.

The Barrel (chamber) is marked -.45 Auto Euro - and I don't know what this means or why it is marked this way. I am attaching pictures of the firearm and barrel in question. Appreciate any insight to satisfy my curiosity.

Left side of 1911

Right side of 1911

Barrel with .45 ACP round in chamber

Barrel markings

 

[Scorch]

Don't know if this is what you have, but there is a .45 Automatic Short cartridge that is used in Mexico and in European countries that do not allow private citizens to possess firearms in military chamberings. Performance of the cartridge is about equal to 45 ACP, but it keeps the bureaucrats from getting their panties in a knot over civiliand owning military weapons (something about being afraid of the masses, you know).