small clear glass bottle has two chambers with a cork separating the contents, tin seal on top with a rubber cork with "pat. 290827" on it. Bottom of the bottle says "B-B 11" or "B-8 11". Thank you
My hunch is that this is a mucilage (glue) bottle. If the stopper appears to be rubber and have a slit it it, then this would confirm my suspicion.
Are you sure that patent # is complete and correct? I could not find anything related to that #