The wrap is the later "bowling ball" black oyster pearl which came out at the very end of the 60s. The Blue Olive badge came out in '69 so since this set has keystones, I would say it's a late '68 or early '69. It has the later style ratched on the rail mount and the curved spurs which also indicate late '68 or early '69.
Ludwig being Ludwig, sometimes minor details like badges didn't change all at once, so you might be looking at '70 as well.
The snare stand, hi hat stand, and the left cymbal stand are original Ludwig lightweight stands as is the bass drum mounted cymbal arm.
Looks like a Rogers Dynasonic snare and some A Zildjian cymbals.
Not sure on the throne, looks familiar. Maybe Slingerland.
The other cymbal stand is a much later Ludwig stand.
Not sure what the tom on the floor with the maracas on it is. Probably not original to the set.
The double tom mount is a later addition.
So the shells will be Three Ply, mahogany - poplar - Maple. Could be painted white inside or varnished maple.
Looks like a nice, unmolested set, other than the added double tom mount.