1 and 0 frames were common up to some point before 200K and then all you see are 1 frames

I would be interested in knowing if 1 frame 12 gauges declined around the same time.
The oft posted gauges chart lists them both as "obsolete", a potentially interesting choice of words.

1 frame 12 gauges declined when the 1 1/2 frame was introduced.

Mills, I love the POW grip on that one.

Me too! I liked it so much, I used it as a model for a restock on another gun

Sure wish they had made more like that.

Back to the question at hand, what has everyone else observed?

Has anyone personally observed a 0 frame 16 above 183238?

Not a full gun but ....
 

Bought these 16 O frame ejector barrels a while back, Serial number is 194964 for a grade 4.

Those are cool! Too bad the rest of the gun is missing

They could be a good project or a second barrel set. They are 26" 3 lbs. with tight chokes. It seems to me that good barrel sets as well as factory wood are much harder to find these days so I snag them when I can.