Here are the specs
Mid 60s production
3 ply thin shells with rings and factory beige interiors

Slingerlands exclusive Chrome over brass Stick Saver hoops on 12 & 14

Original Bass hoops with full inlays
 

Mufflers on the 12 and 14

Even all the tension rods on this set are original and clean

Both the Finish and Chrome are in gleaming condition just look at the pictures!

Edges are also perfect and the drums tune easily and sound superb
Push Button Ft leg mounts have replaced buttons and  work fine

Though not original The later 60s Setomatic single arm was added when made available.
This was some what of a bonus compared to the rail arm type mounts
The 4 holes from the privious rail mount have been utilized by slingerland mounts which
will include 2 new Cymbal L arms.
Serial numbers are
8 x 12 152661
14 x 14 152665
14 x 20 154691