This could be a rarity, and maybe some crazy special order item, but I think unlikely. If you could post a picture of the date stamp that would be great, as has mentioned above that would be a big clue as to the original condition of the inside drums from the factory.
Mcjnic, it is very yellow not the horribly coloured semi transparent chocolate milk sealing paint we all know from our kits.
The lack of badges could be justified, as this is not unheard of.
Just having a look at that floor tom, the leg brackets arent correct. Also the floor tom legs themselves are not original, slingerland did not move to offset legs until later (assuming the date stamp is original and correct). The washers and screws which can be seen holding the leg barckets in place are notably different.
With this in mind and the point that the wrap (despite its fragile nature) is so badly stretched and torn would make me think this kit has been altered. I would guess it was owned by a particulary ambitiuous player who customized it to extremes.
just my 2 cents Coffee Break2