I found no reference to B&H ever making a bronze lamp,,only brass was made that I found !! And yours does look like the brass banquet lamps they made which were larger and more ornate than parlor lamps !! The globe you have on it is too large and really should be replaced with the correct size for top dollar !! I think these were all numbered by B&H can you find the number on yours or is the pat. dates all that is on it ??