On the lid is KWG ISOTHERM and I am just assuming that this is a Dewar Flask because it looks like Dewar Flasks that I see listed.  I don't know the capacity but it is about 7-3/4" tall, not including the lid, about 6-5/8" OD and about 5-1/2" ID.  The lid looks to me like the lid had some holes drilled in to add the 2 pipes and the hose connector.  The lid is missing the gasket.  There is a what looks to be just a discoloration circle on the inside of the glass that can be seen in the last 2 pictures.  

D7-1

fdk 80629238