This is the spectacular custom 19" Super Jumbo guitar made in 1939 by August Larson for Jay Rich.  It was made with the original cutaway, perhaps the only one made by the Larsons.  

It originally had an F-hole top which was badly abused in it's early years.  In the 1960s Jon Lundberg replaced the f-hole top with the current oval hole top and amazing bridge by Mario Martello who worked for Jon.  

The result is an incomparable, museum-grade instrument.   I still have the original rough t-hole top.