Plumb Jersey, 4lb 10oz, Odd Poll?

[Yuddzy]

I'm beginning work on cleaning up this old Plumb Jersey axe. I've only gotten as far as doing a quick vinegar bath to check for a quench line and to generally help with cleaning up. This is after wire brushing. You can see two lines, one of which I would guess is a weld line? The other, likely a quench line. Weirdly, the top third of the poll also turned a dark black during the soak, and the entire poll formed a faint straight line. After the cleanup you can see a scaly pattern on the metal forming the upper 1/3 of the poll.

https://imgur.com/a/fUgGitC

 

[crbnSteeladdict]

I'm beginning work on cleaning up this old Plumb Jersey axe. I've only gotten as far as doing a quick vinegar bath to check for a quench line and to generally help with cleaning up. This is after wire brushing. You can see two lines, one of which I would guess is a weld line? The other, likely a quench line. Weirdly, the top third of the poll also turned a dark black during the soak, and the entire poll formed a faint straight line. After the cleanup you can see a scaly pattern on the metal forming the upper 1/3 of the poll.

https://imgur.com/a/fUgGitC

Plumbs were made from tool steel it cannot be a weld line: those line were created during heat treatment process.

https://www.bladeforums.com/threads/it-followed-me-home-part-2.1190276/post-17380804

https://imgur.com/a/KumEq

 

[Yuddzy]

Plumbs were made from tool steel it cannot be a weld line: those line were created during heat treatment process.

https://www.bladeforums.com/threads/it-followed-me-home-part-2.1190276/post-17380804

https://imgur.com/a/KumEq

Interesting, I wonder if the darker line closer to the edge is just where the vinegar etched more deeply due to being previously filed on in that spot? It roughly follows the old primary bevel.