Kimax, USA, TC 20 degrees C, 2000 ml, TS 27.  16" tall.  It does have a ground opening for a stopper.  1" ID.  It does have many production lines in the glass.  I don't know if these are hand blown, but that is what the lines look like.  I love the shape and size of this flask.  Very nice.  I did clean it out with hot water and a dish detergent.