The (subtle) differences between Steuben & Fostoria can be seen in several instances :
1. The area where the bowl attaches to the base/foot is larger/higher with Fostoria, as it was mfg’d. in-total, whereas the Steuben pieces were actually stuck-together from separate pieces of glass.
2. The Steuben versions can vary in size, slightly. Not only from Fostoria’s, but from each other.
3. The bottoms of the Steuben items always have a ground-and-polished pontil. Fostoria’s would have been fire-polished, only. (Obviously, this is the easiest to find/see, but you have to be able to see/examine that bottom area.)
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