1957-1959 production. It can be converted to film camera , I dont know if its back could be opened and place a 4x5 back. But some people does it and sell for 1600 dollars. Wait few days and replies , someone would turn with a idea. Old Polaroid Camera lenses are a jewel and you can expect a very very high quality pictures.
Dont sell it , gift it and most importantly dont ruin it to a pinhole.
I will look for converted polaroid sites and turn back to you at here again.