Hello Ruth,That's a very nice looking vase, I wish I could tell you who made it, but I don't know.
In my opinion; you have a "cased glass" vase, pink (cranberry color) glass over white glass.
It was made by dipping a gather of white glass into pink (cranberry colored) glass. The gather was then given a slight tap on the bottom to push more of the outer color to the side, so when the piece was blown the bottom half would show more of the inner layer color and the outer color would be more concentrated going toward the top half.
The "Peachblow" name applies only if glass maker called it that, but many who see a piece of glass which shades from white to pink tend to jump to the conclusion that it is Peachblow, because the name has cachet in glass collecting.
The thing is; many glass companies produced a bi-partite or shaded glassware in white to pink or white to some other color and each had their own marketing name for their products, so basically; "Peachblow" is more of a glass company product name then it is a certain type of glass.
The first to be called Peachblow was a cased glass version, by Hobbs-Brockunier & Company of Wheeling, West Virginia, which is only Amberina, (said to be the first bi-partite glass) plated over milk glass. The Webb version is a cased\plated pink (cranberry color) glass over a white glass, but the white lining is a different color than the other makers used. It has a slight bit of uranium oxide added to the white batch, giving the white glass a barely noticeable creamy yellow look, that becomes much more noticeable when a Webb piece is set side by side a piece made with a plain white glass. The white area on a Webb piece will glow green when exposed to a black light.
Other companies made items like this and some who borrowed the popular Peachblow name, were sued and had to change their product names, but it was too late since the general public kept referring to all of it as Peachblow anyway.
Shaded glass like this was done a number of different ways, some versions were done in cased glass and some in a homogeneous, heat sensitive glass that was re-struck (re-heated) on one area to make it turn another color in that area, so you see; Peachblow is not a type of glass in a technical sense, but only a marketing name for some of this shaded glass is all. Finding out who the maker is will tell you if they once called it Peachblow or not.
Given that your piece has the rough unfinished pontil area on it I would say it is not likely a product of the most well known companies (Hobbs, Mt. Washington, New England, Webb, Shirley etc.) who (as far as I know) did fine finishing work on all of their items, grinding and polishing smooth the pontil areas.
--------------------As for the Satin, Matte, Glossy finish; This is just for the sake of interest, since it means very little to anyone these days.
Most people call any non-glossy finish glass "Satin". There are a number of older marketing names that were used by the glass companies, for their varied non-glossy finishes on their glass, but sellers and collectors mainly use the generic "Satin Glass" term these days, so it is barely important I guess, but I'll put it here anyway.
The three names I know offhand are -
Satin, Peach-Skin and
Plush- and then there is a completely
Matte finish.
Satin Glass not only feels satiny to the touch, but it also looks satiny, with a bit of shine to it, just like satin cloth.
http://tinypic.com/htbiiv.jpgPeach-Skin or
Plush finishes have a soft, satiny feel, but not the satiny look.
http://tinypic.com/htbivd.jpgThe
Matte finish has no satiny feel or look to it.
http://tinypic.com/htbjlt.jpgThat blue matte piece is by Fenton, who for marketing purposes often capitalizes on the glass names and terms used for antique art glass. They call that matte finish "Satin", even though it is only glass that has been sand-blasted and the surface is rough enough to file your finger nails down with, nothing about it suggests satin, but the maker calls it satin, so satin it is.
Peachblow & Satin Glass Is many things to many people, since there are sellers and collectors names and terms, and then there are the glass makers names and terms, so we are stuck with glass collecting history clashing with glass making history and it can sometimes be a real headache :x when this happens.
Mike