I recently found a nice 5904 in my favorite LGS. I watched it for a few days but it did not last long. I thought I'd never see it again...

My wife bought it for me. She gave it to me yesterday.

It appears to be an early model with a TCJxxxx serial number. It has a square trigger guard with checkering on the front (10 rows, not 8) and fixed blade-style rear sights. It has four lines of text on the left side of the slide ("MARCAS REGISTRADAS... etc") and the end of the magazine release shaft has a small, round protrusion near the bottom of the trigger guard. I suspect it was not a LEO pistol as it has very little wear : just a few small scratches on the dust cover and the frontstrap. The bore is mirror bright.

This 5904 is a nice companion piece to my poor, lonely CS-40. It's also proof that my wife hears SOME of what I say about guns.