Yes those are Tennessee Reds. Fast flying little suckers!

Yes Tennessee Reds...fast little suckers too.

Didn't the original poster tell us, after re-measuring, that it's a 1-frame?

That’s me and that is the measurement center to center of the firing pins. Verified by 2 machinists. But the Parker Holy Grail says “0”. If there is another measurement for further verification I will gladly take.

See the attached photo and look into the lug seating area, my terminology, you will see a 70 or OL. Does this indicate anything?

Last couple of digits of the S/N. Most small parts have a partial S/N.

last 3 numbers of your serial number take trigger plate off and you would see the other 0 means its original to the gun

What frame size are you calling this ? What is the measurement again ? Im confused

The Parker records shown earlier in this thread for this serial # shows that it should be a “0” frame. Verified measurement center to center of the firing pins is 1 1/16”... as I understand it that would be a 1 frame.

Don’t feel bad, I’m confused too.

Now I know why Im confused the 0 shown in that post means there is no extras to the gun if its 1 1/16 its a 1 frame it could maybe be a 1/2 frame if the breech side to side is 1 5/8 but if that is 1 3/4 its a 1 frame