This is a Voightlander Jubilar folding camera which was manufactured in Germany between 1931 and 1934.  It is 10" x 7" x 2.5 " when closed.  It has a Vogitar 1.9f - 10.5cm lens.  It is frontcell focusing, with a 2 speed shutter and a keywind to move the film.  It uses 120 type film and gets 8 6-9 cm shots/roll.