Help With Mei On Old Katana

[James2711]

Hello Everyone My names is James.  I recently purchased this sword but having trouble translating

the mei.  I think the middle Kanji  is "Sada"  and the last maybe "saku"?  Please note the first pic is the full signature

and the second pic is a pic of the just the first Kanji cause it didn't show up well in the first pic. Any help would be greatly 

appreciated.

[Ray Singer]

To my eyes, closest would be 安貞 Antei nen. Mei does not appear Kamakura.

[James2711]

Thanks!  Is Antei nen a time period? If so which one?

[Ray Singer]

During the Kamakura period. The mei does not appear to have that age.

 

https://en.m.wikipedia.org/wiki/Antei

[James2711]

Thanks I got it 1227-1229.  The Mei does not appear to be that old for sure but the sword sure does.  Very narrow hamon and old blade

characteristics.  Mei was added much later but not sure why.

Thanks!

[John A Stuart]

I would have thought 文貞 Buntei, but, there is no period named this unless it is one of those oddities that were dated before the official period name was given. John

[nagamaki - Franco]

Thanks I got it 1227-1229.  The Mei does not appear to be that old for sure but the sword sure does.  Very narrow hamon and old blade

characteristics. 

 

 of sword.