
This type may be considered either Embury [E2] or Dietz [D2]; the difference being that the filler caps are of a different diameter. Also note the slight difference near the bottom of the uprights. (Embury burners also had a flat Y wick raiser, Dietz round O.)
Later variations on the standard Dietz lantern involved bail attachment and an extra hole in each upright stamping at the wick-raiser level.
(R. Meyer photo)