What does the # 8 on the barrel flat mean?

[David Livesay]

This is a Vulcan grade Parker with serial # 110413. I am wondering what the # 8 means that is in the area where the frame size usually is. The gun is advertised as a 12 ga. Did they make a 12Ga. on a size 8 frame? I tried to post just the picture of the barrel flats, but it wouldn't let me. Next to last picture.

https://www.gunbroker.com/item/1109759158

[Jim DiSpagno]

It's a 2 frame gun. The "8" is probably an inspectors mark

[Dave Noreen]

No one still alive knows.

[Keith Sirmans]

It's a 2 frame gun. The "8" is probably an inspectors mark

That's what the K is

[Dave Noreen]

The Kf is the barrel steel mark used on Vulcan Steel barrels from the introduction of the Quality VH guns into the 134xxx serial number range.

134454

Similarly Titanic and Acme Steel barrels through that time frame are marked with a K --

134455

134456

By the 135xxx serial number range we begin seeing the V, T, A in a circle barrel steel marks.