Hello again Anne,
The book I used to figure out who made your pitcher is "West Virginia Glass Between the World Wars" by Dean Six. It's a Schiffer publication.
This book is basically a primer for collectors, covering the West Virginia glass companies from that era and their history, so it doesn't cover everything they made, but it does feature examples by each company. The written glass company history parts of this book are the best feature and are well written for the general collector, not the author's peers, which is a common peeve I have with many other American glass book authors, who seem to be more worried about what other glass book authors will think of their creative writing skills and in turn tend to write for other glass book authors instead of the collector.
Anyway; I found the tumblers that go with your pitcher in the book and a small line drawing of the pitcher itself in a collection of old glass company catalogs I myself own and have been collecting over the years. There are two versions of the pitcher, a tall one like yours and a fat squat version. There is also a tall vase, which is what your pitcher is made from. They added a handle and crimped in a pour spout to make a pitcher out of it, this was done by many of these glass companies.
I tried ten different ways, but I can't get a detailed scan of the old pitcher drawing, it just comes out as a fuzzy gray blob, but here is a picture of the tumblers, so you can see what they look like, in case you ever decide to collect and put together a whole set.http://tinypic.com/4twmqb
I agree with Connie
that your pitcher does look like a Tiffin
model, but the dark amber color is something I would look at Paden City
for first, since they seem to have used it more often than the others. I looked through the information I have on hand twice, but I couldn't find that particular pitcher. I did see one that looks similar, but the stacked rings were on the top half and the bottom was plain, other than the paneled design, which yours also has.
Based on what I have to look at; The lid handles on the covered items all seem to be different for each maker and sometimes this is a good clue. I do see some other Paden City covered dishes that have a lid handle like that on your pitcher, which is a ball over a wafer, so this is only a suggestion and not something I can easily verify, since I don't have info and pictures for everything done by each company, who made items like this.
Would you mind much if I copied or linked your photo to another glass board, where there are folks who collect glass from this era? I would like to find out what it is myself, so I can add it to my own files.Mike