Does anyone know maker on this pottery vase? TIA

sorry for some reason could not post comment, It is approx 9 inches tall and fairlt heavy. there are what looks to be nos, and a few letters embedded on bottom. but unable to trace or read. thanks for any help you can give.

 

This is a guess, but it's very similar to a couple of RumRill / Red Wing pieces I've seen - both the leaf style and "antiqued" decoration.

If no one answers with a definitive answer, you may want to search in that direction.

A couple of similar examples, with varying decoration - to me, the leaf motif looks almost exactly the same:
http://www.ebay.com/itm/Vintage-Red...quoise-Interior-Leaf-Vase-5-3-4-/282188819251
http://www.ebay.com/itm/Signed-Rum-Rill-Red-Wing-Pottery-Leaf-Design-514-Vase-/182315163005

 

I remembered that I had a Red Wing Art Pottery book (B. & L. Dollen, authors), and look what was on the back cover!

Their writeup:

"SYLVAN GROUP:
The Sylvan group consisted of various style vases, bowls, two different candleholders, and a basket bowl. All were decorated in the same turned-out leaf style and done in a variety of finish colors."

The Sylvan line was listed in the 1920s/1930s artware section, when its production began. I believe the color of yours would be called "Ivory with Brown Wipe".

 

Good job!