Greaves sheaf works....??

[ecdw75]

i just got this off the bay,
the blade only has sheaf works on it....and the handle is marked as well,
i doesnt appear that any other marks have been worn off or down, no chips and cracks overall for 20$ iam happy if its the real mc coy ....
its just the lack of any other marking that has me concerned,
nothing appears reground and the handle doesnt look to be a transplant....just havent found any other resource backing up if this is how sheaf works came ?
thanks for any input ..