How it is made is totally up to the mfr !! One or the other is not definitive as to what type of glass it is !! Much pressed glass was made during the same years that depression glass (as we know it) was made !! Its just a method of manufacture !! Some pressed glass was blown in mold,, some was poured in two (or more) piece molds !! Some mfrs ground the seams and some did not !! Technically speaking the depression glass we know and collect is pressed glass !! But they needed a way to separate the types so the term pressed glass was born !!
