Vase Maker Mark

[DANTE5]

Good Morning Everyone,

I have this lovely vase that I found at a thrift store in Georgia (USA).  I have researched in the past and concluded it was similar to a Shigaraki Vase.  It is marked on bottom (see photos).  Just recently I stumble upon the St Ives Studio pottery and began to second guess myself.  I am a amateur at this and really need some expert eyes to view and give me your thoughts. 

[DANTE5]

More photos.  Also I forgot to include measurements.   Measuring approximately 7 1/2" X 4"