You can tell genuine clipped planchets from post-mint damage in a couple ways:
1) Curved clips should have roughly the same radius as the coin. So you should be able to fit another coin of the same denomination in the clipped area. Striking distorts it some, so it won't be an exact fit, but it should be close. (Looks good based on the pictures).
2) The edge of the coin inside the clip will have a distinctive appearance (sheared, from the cutting of the planchet, then squashed, from the strike). It will look much different if somebody took a Dremel or something to it. (Can't see from these pictures).
3) With multiple clips, the position and size of the clips should make sense. (Looks good to me.)
4) The features on the coin near the clips will be weaker and "flow" toward the clips because the metal pushes out into the gap. Hard to tell from these pictures, but Chainchomp says it has this. See the dime in my avatar for an example on this.
5) The rim opposite the clip should appear weaker or flattened out due to the "Blakesley effect". The gap creates an imbalance of forces during the strike, so the metal is not squished as hard on the side opposite the gap, and the rim doesn't get pushed up as much. This is harder to see with small clips or multiple clips, but I can see it clearly even in the blurry picture.
