I just purchased the bible on Kragicon Bayonets from Donald J. Hartman. I am still digging into it, there are a lot of details to nuances to this bayonet. He has a youtube video that might help. It is:



I do know if it is BLUED (and original) it is quite valuable/rare. They stopped bluing them at some point in 1895, if I recall correctly, because the bluing weakened the blade.

The book is a work of art. He also has a book on the Entrenching Tools from the Civil War to WW1, equally remarkable.

Note, I have no financial interest in this, just sharing the link.

DDonald J. Hartman

I hope that helps some.