Bert Floyd built some homebuilts in the late fifties/early sixties. After the BF-2 he also completed similar BF-3 and BF-4 projects. The BF-2 was later converted into a two-seater with registration N900F. Registration is still described as 'assigned' and owner is a mr. F.Fox.
Just google on registration N900F and you'll get the details!
This is a set of private polaroids of 1958, so they must be quite unique!