This is one segment.
I think the red marks at the bottom indicate the ribband edge welds, and the blue the 3 'scrolls' between the squished scrolls at the ribband edges which were 'jumped' or edge to edge butt welded - so it would be a 4 Iron crolle.
The 'smudged' areas within the white indicate IMHO decarburization - excessive heating of the metal causing loss of carbon and therefore lack of contrast with staining
The white arrows indicate decarburization lines. Another example - Parker 6 Iron "Turkish"
