That pattern you see means that it is NOT 29.97PsF. That means that it is 29.97i. PsF would mean that every frame is comprised of two identical fields. This is plain interlaced footage, with 2:3 pulldown added to get from the original 24 frames to 60 fields.
[Andrew Saliga]"The client has requested to have footage converted back to its original framerate. What's the best/proper way to go about this?"
You can use Cinema Tools or Compressor to "Reverse Telecine" the footage to get back a true progressive 23.976fps file. Compressor can usually detect the cadence automatically, so I'd try that first, and if you have problems with blended frames, use Cinema Tools which gives you manual control over the cadence detection.