This bass must have started life as either a 6070 (long scale, double cutaway, single pickup) or 6072 (long scale, double cutaway, two pickups) model. Both had painted-on fake f-holes. So real f-holes had to be cut in order for this bass to look like a Falcon.
I've seen another one last year on eBay, also a 60's 6070 model converted to look like a White Falcon bass. Probably by the same person.
I'm not sure I like what he's doing to vintage Gretches.