Value is dependent on how it is sold. Not many collectors interested in Savery (besides me), especially these big pots, as they are hard to display and take up a lot of room. However, lately, these large pots have gone from 150-$200+. If I had to guess, I'd say $175-250.
Savery items are very crude and don't have very smooth textures either. I have a few items that are smooth but most of them are rough, definitely not like a Griswold and WW finish to them
Perry, yes, all of their items were sold by the pound. The catalog that I have is about 3x7 and has about 80 pages (I"m guessing, as I'm at the hospital right now.
Here is a pix of the foundry
http://www.lcpgraphics.org/wainwright/W329.htmAnd here is a pix of the catalog that I have