Just thought i would post something a little different, Japanese but neither ww1 or 2, infact its a great deal older.

Yajiri (arrow head) ground dug by a friend of mine in japan in 2004 and is believed to be an Edo peroid peice.

Made of forged steel, dark patina and light rust on tang, the buisness end as you can see has a fair amount of surface rust, only a tiny spot of pitting. I could remove this rust but really with something this old its best left as is, i simply apply a light film of Choji oil to it every month.

Cheers-

Darren.