Glass Message Board

Yours is double walled, guessing that technical wizardry comes before any moulded shape, would that make a difference?

There is a similarity with all yours but is the foot the same?

Number 1 doesn't look like it fits though.  The others, if the foot is the same, could have been stretched or squashed I guess, which is what I was thinking about mine compared to yours.  That mine had been slightly squashed down.  But in theory the rings look the same as on yours apart from number 1

Information re catalogues and sample books of Josephinenhutte AG (1920s and 1930s):

Source Schlesisches Museum zu Goerlitz
https://www.schlesisches-museum.de/en/about-us/the-collection/glass

part quote:
'...However, thanks to a donation, the Silesian Museum was able to obtain numerous documents of the Fritz Heckert Company in Petersdorf (Piechowice); furthermore, the museum purchased a comprehensive collection consisting of some 50 catalogues and sample books of Josephinenhütte AG (1920s and 1930s) aa well as the Polish successor company Huta Jozefina (1950-ies).'

also

There is a small excerpt from the American Glass Review of 1923 which indicates things might have been a struggle for Josephinenhutte and other makers around that time.
In 1923 it says they merged the company with Fritz Heckert and Kynast-Kristall. 

https://www.google.co.uk/books/edition/American_Glass_Review/gFXdxkOIjgYC?hl=en&gbpv=1&bsq=josephinenhutte+and+fritz+heckert+glass&dq=josephinenhutte+and+fritz+heckert+glass&printsec=frontcover

It also says Rhenish-Westphalian glass handed notice to all their makers.

I don't know how strong the company was in 1929 but that was the year of the Great Depression.  Perhaps the range was launched but never got off the ground on a long term basis.

Erwin Pfohl returned to Novy Bor in the 1930s /1930? and remained there for the rest of his life from my understanding.


From the Eastman museum, some information about Dr Arthur Traube:
https://archives.eastman.org/agents/people/302