It's true, the 29-3 began on the "cusp" of the elimination of serial numbering the extractor star in the early 1980s.

Oddly enough, we have often observed all original 4 Screw K and N frames with numbered cylinders when none of the other parts including the extractor star were numbered, except the frame of course.

Obviously, something had changed in the fitting and/or finishing sequence for a short time early on that did not require numbering the extractor.

Clearly, that sequence was soon changed again, and we again observe the long used process of serial numbers on the frame and extractor only.

There are exceptions like anything S&W, and the extractor star serial # stamping is no exception being sporadic in the early 1980s. Only the butt and yoke cut stamping locations remain to this day.

The new star ratchet shape began in 1996 and is not serial numbered.

__________________
Jim
S&WCA #819