Puzzling SACM 1935A pistol.

[Anzac15]

Hello, have recently bought a pretty nice French 1935A pistol. It does not bear any German markings, has a cursive 'J' (thats what it looks like) prefix. I figured this was a prewar model, but then noticed the T in a circle marking on both the front of the slide, and on the bottom of the barrel. Is this not a Czech marking? And if so, what's it doing on a French pistol? Can not find any reference to it. Any info would be most appreciated.

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[Anzac15]

Here are some pics of the circle T 1935A.