this is an osterizer model 10 blender. on the bottom someone has etched 1952 on it. the paint on the base is flaking. the jar is glass with and is 4 cups. the lid is made of the hard rubber and has crack lines in it from age.rubber on cord also has crack lines but no fraying. from age.might want to rewire if you plan on using regularly the metal base on the jar says john oster mfg. co. racine, wis. that glass also has a lined edging for gripping and no slipping. has only an on and off switch. in good used condition.