Hmmm no, we're no wiser yet, Della, but it's interesting to see your glasses. I've just added images of mine as attachments above to save folks having to go off-board to compare them with yours. Between yours and mine we have three styles of teak stems, but the glass all appears the same colour. They strike me as 1960's/1970's style, but searching google images only fetches back a very small number of results of brandies like mine, so maybe they didn't really catch on?