[USMCPOP]

No doubt. One of many manufacturers:

http://forums.gunboards.com/showthread.php?133741-The-smaller-%287%29-shot-Ruby-s

http://forums.gunboards.com/showthread.php?88044-Pistolet-Automatique-de-7-millim%E8tre-65-genre-Ruby

[norton]

Wow!
Thanks.
From the huge summary in your link I have to assume mine was not part of any military order;
only has manufacturer's trademark and serial number.

Surprisingly, it's a fairly accurate little runt.